./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/dirname-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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/busybox-1.22.0/dirname-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 14:14:02,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 14:14:02,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 14:14:02,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 14:14:02,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 14:14:02,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 14:14:02,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 14:14:02,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 14:14:02,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 14:14:02,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 14:14:02,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 14:14:02,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 14:14:02,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 14:14:02,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 14:14:02,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 14:14:02,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 14:14:02,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 14:14:02,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 14:14:02,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 14:14:02,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 14:14:02,198 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 14:14:02,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 14:14:02,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 14:14:02,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 14:14:02,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 14:14:02,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 14:14:02,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 14:14:02,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 14:14:02,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 14:14:02,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 14:14:02,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 14:14:02,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 14:14:02,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 14:14:02,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 14:14:02,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 14:14:02,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 14:14:02,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 14:14:02,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 14:14:02,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 14:14:02,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 14:14:02,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 14:14:02,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 14:14:02,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-14 14:14:02,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 14:14:02,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 14:14:02,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 14:14:02,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 14:14:02,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 14:14:02,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 14:14:02,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 14:14:02,232 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 14:14:02,232 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 14:14:02,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 14:14:02,233 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 14:14:02,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 14:14:02,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 14:14:02,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 14:14:02,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 14:14:02,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 14:14:02,234 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 14:14:02,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 14:14:02,234 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 14:14:02,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 14:14:02,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 14:14:02,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 14:14:02,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 14:14:02,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:14:02,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 14:14:02,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 14:14:02,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 14:14:02,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 14:14:02,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 14:14:02,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 14:14:02,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90eaf2e76e590922119d90e478fc764e383193134f46d6fe59bc98f3ce7c6611 [2022-07-14 14:14:02,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 14:14:02,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 14:14:02,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 14:14:02,444 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 14:14:02,445 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 14:14:02,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2022-07-14 14:14:02,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1efbc5f89/a72daf71960e40ce9fdb84b31c5722ff/FLAG37e336887 [2022-07-14 14:14:02,997 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 14:14:02,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/dirname-1.i [2022-07-14 14:14:03,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1efbc5f89/a72daf71960e40ce9fdb84b31c5722ff/FLAG37e336887 [2022-07-14 14:14:03,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1efbc5f89/a72daf71960e40ce9fdb84b31c5722ff [2022-07-14 14:14:03,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 14:14:03,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 14:14:03,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 14:14:03,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 14:14:03,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 14:14:03,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:03,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310b6606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03, skipping insertion in model container [2022-07-14 14:14:03,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:03,364 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 14:14:03,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 14:14:03,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:14:03,859 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 14:14:03,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 14:14:03,971 INFO L208 MainTranslator]: Completed translation [2022-07-14 14:14:03,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03 WrapperNode [2022-07-14 14:14:03,972 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 14:14:03,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 14:14:03,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 14:14:03,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 14:14:03,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,033 INFO L137 Inliner]: procedures = 345, calls = 111, calls flagged for inlining = 8, calls inlined = 7, statements flattened = 279 [2022-07-14 14:14:04,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 14:14:04,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 14:14:04,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 14:14:04,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 14:14:04,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 14:14:04,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 14:14:04,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 14:14:04,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 14:14:04,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (1/1) ... [2022-07-14 14:14:04,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 14:14:04,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:04,124 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) [2022-07-14 14:14:04,142 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 [2022-07-14 14:14:04,153 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 14:14:04,153 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 14:14:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 14:14:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 14:14:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 14:14:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 14:14:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-07-14 14:14:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 14:14:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-07-14 14:14:04,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 14:14:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 14:14:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 14:14:04,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 14:14:04,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 14:14:04,276 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 14:14:04,277 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 14:14:04,542 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 14:14:04,546 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 14:14:04,546 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-07-14 14:14:04,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:14:04 BoogieIcfgContainer [2022-07-14 14:14:04,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 14:14:04,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 14:14:04,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 14:14:04,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 14:14:04,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:14:03" (1/3) ... [2022-07-14 14:14:04,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d10efa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:14:04, skipping insertion in model container [2022-07-14 14:14:04,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:14:03" (2/3) ... [2022-07-14 14:14:04,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d10efa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:14:04, skipping insertion in model container [2022-07-14 14:14:04,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:14:04" (3/3) ... [2022-07-14 14:14:04,553 INFO L111 eAbstractionObserver]: Analyzing ICFG dirname-1.i [2022-07-14 14:14:04,562 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 14:14:04,562 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-07-14 14:14:04,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 14:14:04,607 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@5833bfb5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@68978cb1 [2022-07-14 14:14:04,608 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-07-14 14:14:04,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 66 states have (on average 1.7575757575757576) internal successors, (116), 90 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-14 14:14:04,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:04,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-14 14:14:04,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:04,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:04,618 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-07-14 14:14:04,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:04,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514105247] [2022-07-14 14:14:04,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:04,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:04,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:04,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514105247] [2022-07-14 14:14:04,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514105247] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:04,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:04,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:14:04,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546717366] [2022-07-14 14:14:04,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:04,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:04,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:04,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:04,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:04,797 INFO L87 Difference]: Start difference. First operand has 93 states, 66 states have (on average 1.7575757575757576) internal successors, (116), 90 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:04,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:04,827 INFO L93 Difference]: Finished difference Result 182 states and 232 transitions. [2022-07-14 14:14:04,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:04,829 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-07-14 14:14:04,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:04,834 INFO L225 Difference]: With dead ends: 182 [2022-07-14 14:14:04,834 INFO L226 Difference]: Without dead ends: 90 [2022-07-14 14:14:04,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:04,841 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 1 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:04,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 204 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:04,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-07-14 14:14:04,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-07-14 14:14:04,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 64 states have (on average 1.625) internal successors, (104), 87 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 106 transitions. [2022-07-14 14:14:04,867 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 106 transitions. Word has length 4 [2022-07-14 14:14:04,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:04,867 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 106 transitions. [2022-07-14 14:14:04,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:04,867 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 106 transitions. [2022-07-14 14:14:04,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 14:14:04,868 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:04,868 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-07-14 14:14:04,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 14:14:04,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:04,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:04,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2022-07-14 14:14:04,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:04,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121681291] [2022-07-14 14:14:04,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:04,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-14 14:14:04,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:04,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121681291] [2022-07-14 14:14:04,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121681291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:04,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:04,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:14:04,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992423933] [2022-07-14 14:14:04,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:04,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:04,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:04,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:04,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:04,952 INFO L87 Difference]: Start difference. First operand 90 states and 106 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:04,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:04,968 INFO L93 Difference]: Finished difference Result 90 states and 106 transitions. [2022-07-14 14:14:04,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:04,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-14 14:14:04,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:04,970 INFO L225 Difference]: With dead ends: 90 [2022-07-14 14:14:04,970 INFO L226 Difference]: Without dead ends: 89 [2022-07-14 14:14:04,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:04,971 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 2 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:04,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 194 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:04,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-07-14 14:14:04,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2022-07-14 14:14:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 64 states have (on average 1.609375) internal successors, (103), 86 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:04,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 105 transitions. [2022-07-14 14:14:04,977 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 105 transitions. Word has length 7 [2022-07-14 14:14:04,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:04,977 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 105 transitions. [2022-07-14 14:14:04,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:04,978 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 105 transitions. [2022-07-14 14:14:04,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-14 14:14:04,978 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:04,978 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-07-14 14:14:04,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 14:14:04,979 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:04,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:04,979 INFO L85 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2022-07-14 14:14:04,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:04,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800944478] [2022-07-14 14:14:04,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:04,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:05,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:05,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:05,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800944478] [2022-07-14 14:14:05,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800944478] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:05,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778757102] [2022-07-14 14:14:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:05,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:05,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:05,051 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) [2022-07-14 14:14:05,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 14:14:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:05,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:05,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:05,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:05,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778757102] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:05,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:14:05,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-14 14:14:05,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961376275] [2022-07-14 14:14:05,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:05,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:14:05,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:05,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:14:05,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:05,213 INFO L87 Difference]: Start difference. First operand 89 states and 105 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:05,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:05,240 INFO L93 Difference]: Finished difference Result 89 states and 105 transitions. [2022-07-14 14:14:05,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:14:05,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-14 14:14:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:05,242 INFO L225 Difference]: With dead ends: 89 [2022-07-14 14:14:05,242 INFO L226 Difference]: Without dead ends: 88 [2022-07-14 14:14:05,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:05,243 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 182 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:05,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 102 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:05,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-07-14 14:14:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2022-07-14 14:14:05,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 62 states have (on average 1.6129032258064515) internal successors, (100), 83 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:05,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2022-07-14 14:14:05,250 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 8 [2022-07-14 14:14:05,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:05,250 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2022-07-14 14:14:05,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:05,250 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2022-07-14 14:14:05,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-14 14:14:05,251 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:05,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:05,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:05,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:05,468 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:05,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:05,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1662112421, now seen corresponding path program 1 times [2022-07-14 14:14:05,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:05,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704063713] [2022-07-14 14:14:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:05,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:05,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-14 14:14:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:05,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:05,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704063713] [2022-07-14 14:14:05,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704063713] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:05,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308903678] [2022-07-14 14:14:05,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:05,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:05,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:05,556 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) [2022-07-14 14:14:05,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 14:14:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:05,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:05,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:05,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:05,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:05,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308903678] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:05,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:14:05,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-14 14:14:05,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354337493] [2022-07-14 14:14:05,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:05,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:14:05,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:05,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:14:05,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:14:05,676 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:14:05,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:05,698 INFO L93 Difference]: Finished difference Result 175 states and 209 transitions. [2022-07-14 14:14:05,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:14:05,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2022-07-14 14:14:05,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:05,699 INFO L225 Difference]: With dead ends: 175 [2022-07-14 14:14:05,699 INFO L226 Difference]: Without dead ends: 95 [2022-07-14 14:14:05,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:14:05,700 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 8 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:05,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 290 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:05,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-07-14 14:14:05,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-07-14 14:14:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 71 states have (on average 1.5352112676056338) internal successors, (109), 92 states have internal predecessors, (109), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 111 transitions. [2022-07-14 14:14:05,705 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 111 transitions. Word has length 13 [2022-07-14 14:14:05,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:05,705 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 111 transitions. [2022-07-14 14:14:05,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:14:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 111 transitions. [2022-07-14 14:14:05,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-14 14:14:05,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:05,706 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:05,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:05,922 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,SelfDestructingSolverStorable3 [2022-07-14 14:14:05,923 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:05,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:05,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1396065045, now seen corresponding path program 2 times [2022-07-14 14:14:05,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:05,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813044168] [2022-07-14 14:14:05,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:05,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:05,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:05,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 14:14:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:05,991 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:05,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:05,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813044168] [2022-07-14 14:14:05,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813044168] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:05,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459714407] [2022-07-14 14:14:05,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:14:05,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:05,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:06,007 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) [2022-07-14 14:14:06,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 14:14:06,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:14:06,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:14:06,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:14:06,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:06,147 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-14 14:14:06,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:06,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459714407] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:06,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:14:06,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-07-14 14:14:06,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623645924] [2022-07-14 14:14:06,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:06,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 14:14:06,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:06,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 14:14:06,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-14 14:14:06,149 INFO L87 Difference]: Start difference. First operand 95 states and 111 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:06,201 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2022-07-14 14:14:06,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 14:14:06,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-07-14 14:14:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:06,202 INFO L225 Difference]: With dead ends: 95 [2022-07-14 14:14:06,202 INFO L226 Difference]: Without dead ends: 91 [2022-07-14 14:14:06,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-14 14:14:06,203 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 87 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:06,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 262 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:06,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-07-14 14:14:06,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-07-14 14:14:06,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 71 states have (on average 1.4788732394366197) internal successors, (105), 88 states have internal predecessors, (105), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:06,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 107 transitions. [2022-07-14 14:14:06,208 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 107 transitions. Word has length 22 [2022-07-14 14:14:06,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:06,208 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 107 transitions. [2022-07-14 14:14:06,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:06,209 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 107 transitions. [2022-07-14 14:14:06,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-14 14:14:06,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:06,209 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:06,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:06,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:06,424 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:06,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:06,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1972300949, now seen corresponding path program 1 times [2022-07-14 14:14:06,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:06,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344955371] [2022-07-14 14:14:06,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:06,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:06,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 14:14:06,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:06,970 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-14 14:14:06,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:06,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344955371] [2022-07-14 14:14:06,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344955371] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:06,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:06,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:14:06,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946506041] [2022-07-14 14:14:06,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:06,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:06,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:06,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:06,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:06,975 INFO L87 Difference]: Start difference. First operand 91 states and 107 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:06,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:06,991 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2022-07-14 14:14:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:06,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-07-14 14:14:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:06,992 INFO L225 Difference]: With dead ends: 160 [2022-07-14 14:14:06,992 INFO L226 Difference]: Without dead ends: 94 [2022-07-14 14:14:06,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:06,993 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:06,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 183 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-07-14 14:14:07,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-07-14 14:14:07,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 91 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 110 transitions. [2022-07-14 14:14:07,001 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 110 transitions. Word has length 28 [2022-07-14 14:14:07,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:07,001 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 110 transitions. [2022-07-14 14:14:07,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 110 transitions. [2022-07-14 14:14:07,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-14 14:14:07,002 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:07,002 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:07,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 14:14:07,003 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:07,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1663245639, now seen corresponding path program 1 times [2022-07-14 14:14:07,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:07,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394781569] [2022-07-14 14:14:07,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:07,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:07,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 14:14:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:07,102 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-14 14:14:07,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:07,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394781569] [2022-07-14 14:14:07,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394781569] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:07,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:07,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:14:07,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054642078] [2022-07-14 14:14:07,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:07,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:07,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:07,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:07,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:07,104 INFO L87 Difference]: Start difference. First operand 94 states and 110 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:07,136 INFO L93 Difference]: Finished difference Result 163 states and 194 transitions. [2022-07-14 14:14:07,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:07,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-14 14:14:07,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:07,142 INFO L225 Difference]: With dead ends: 163 [2022-07-14 14:14:07,143 INFO L226 Difference]: Without dead ends: 161 [2022-07-14 14:14:07,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:07,145 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 73 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 180 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 [2022-07-14 14:14:07,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 180 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:07,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-07-14 14:14:07,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 103. [2022-07-14 14:14:07,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.4578313253012047) internal successors, (121), 100 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2022-07-14 14:14:07,162 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 31 [2022-07-14 14:14:07,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:07,163 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2022-07-14 14:14:07,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,163 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2022-07-14 14:14:07,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-14 14:14:07,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:07,164 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:07,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 14:14:07,164 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:07,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:07,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1663245584, now seen corresponding path program 1 times [2022-07-14 14:14:07,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:07,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17412788] [2022-07-14 14:14:07,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:07,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:07,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 14:14:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:07,257 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-14 14:14:07,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:07,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17412788] [2022-07-14 14:14:07,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17412788] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:07,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:07,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:14:07,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387815544] [2022-07-14 14:14:07,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:07,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:07,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:07,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:07,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:07,260 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:07,274 INFO L93 Difference]: Finished difference Result 103 states and 123 transitions. [2022-07-14 14:14:07,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:07,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-14 14:14:07,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:07,276 INFO L225 Difference]: With dead ends: 103 [2022-07-14 14:14:07,276 INFO L226 Difference]: Without dead ends: 102 [2022-07-14 14:14:07,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:07,277 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 181 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 [2022-07-14 14:14:07,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 181 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:07,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-07-14 14:14:07,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-07-14 14:14:07,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 83 states have (on average 1.4337349397590362) internal successors, (119), 99 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2022-07-14 14:14:07,298 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 31 [2022-07-14 14:14:07,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:07,299 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2022-07-14 14:14:07,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,299 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2022-07-14 14:14:07,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-14 14:14:07,299 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:07,299 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:07,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 14:14:07,300 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:07,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:07,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1322568274, now seen corresponding path program 1 times [2022-07-14 14:14:07,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:07,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027323935] [2022-07-14 14:14:07,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:07,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:07,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 14:14:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:07,377 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:07,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:07,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027323935] [2022-07-14 14:14:07,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027323935] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:07,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064682876] [2022-07-14 14:14:07,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:07,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:07,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:07,391 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) [2022-07-14 14:14:07,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 14:14:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:07,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:14:07,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:07,571 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:07,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:07,635 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 14:14:07,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064682876] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:07,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:14:07,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-07-14 14:14:07,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148203446] [2022-07-14 14:14:07,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:07,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-14 14:14:07,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:07,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-14 14:14:07,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:14:07,638 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:14:07,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:07,678 INFO L93 Difference]: Finished difference Result 207 states and 250 transitions. [2022-07-14 14:14:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 14:14:07,679 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-07-14 14:14:07,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:07,680 INFO L225 Difference]: With dead ends: 207 [2022-07-14 14:14:07,680 INFO L226 Difference]: Without dead ends: 120 [2022-07-14 14:14:07,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-14 14:14:07,684 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 30 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:07,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 366 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:07,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-14 14:14:07,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-07-14 14:14:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.3564356435643565) internal successors, (137), 117 states have internal predecessors, (137), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2022-07-14 14:14:07,701 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 32 [2022-07-14 14:14:07,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:07,701 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2022-07-14 14:14:07,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-14 14:14:07,701 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2022-07-14 14:14:07,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 14:14:07,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:07,705 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:07,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:07,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:07,923 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:07,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:07,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1541317522, now seen corresponding path program 2 times [2022-07-14 14:14:07,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:07,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011498770] [2022-07-14 14:14:07,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:07,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:07,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-14 14:14:07,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:07,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011498770] [2022-07-14 14:14:07,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011498770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:07,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:07,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 14:14:07,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750132029] [2022-07-14 14:14:07,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:07,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:07,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:07,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:07,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:07,987 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:07,992 INFO L93 Difference]: Finished difference Result 166 states and 194 transitions. [2022-07-14 14:14:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:07,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-07-14 14:14:07,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:07,993 INFO L225 Difference]: With dead ends: 166 [2022-07-14 14:14:07,993 INFO L226 Difference]: Without dead ends: 115 [2022-07-14 14:14:07,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:07,994 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 30 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:07,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 143 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:07,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-07-14 14:14:07,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 93. [2022-07-14 14:14:07,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 84 states have (on average 1.2261904761904763) internal successors, (103), 90 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 105 transitions. [2022-07-14 14:14:07,998 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 105 transitions. Word has length 50 [2022-07-14 14:14:07,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:07,998 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 105 transitions. [2022-07-14 14:14:07,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:07,999 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 105 transitions. [2022-07-14 14:14:07,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 14:14:07,999 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:08,000 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:08,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 14:14:08,000 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:08,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:08,000 INFO L85 PathProgramCache]: Analyzing trace with hash -239754721, now seen corresponding path program 1 times [2022-07-14 14:14:08,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:08,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530386899] [2022-07-14 14:14:08,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:08,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-14 14:14:08,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:08,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530386899] [2022-07-14 14:14:08,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530386899] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:08,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390807850] [2022-07-14 14:14:08,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:08,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:08,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:08,096 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) [2022-07-14 14:14:08,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 14:14:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:08,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:08,274 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-14 14:14:08,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:08,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390807850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:08,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:14:08,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-14 14:14:08,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306874443] [2022-07-14 14:14:08,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:08,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:14:08,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:08,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:14:08,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:08,276 INFO L87 Difference]: Start difference. First operand 93 states and 105 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:08,293 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2022-07-14 14:14:08,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:14:08,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-07-14 14:14:08,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:08,295 INFO L225 Difference]: With dead ends: 122 [2022-07-14 14:14:08,295 INFO L226 Difference]: Without dead ends: 121 [2022-07-14 14:14:08,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:08,296 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 82 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:08,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 145 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:08,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-07-14 14:14:08,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 88. [2022-07-14 14:14:08,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 80 states have (on average 1.2125) internal successors, (97), 85 states have internal predecessors, (97), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:08,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2022-07-14 14:14:08,299 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 50 [2022-07-14 14:14:08,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:08,300 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2022-07-14 14:14:08,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:08,300 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2022-07-14 14:14:08,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-14 14:14:08,300 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:08,300 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:08,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:08,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-14 14:14:08,519 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:08,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:08,520 INFO L85 PathProgramCache]: Analyzing trace with hash 267645717, now seen corresponding path program 1 times [2022-07-14 14:14:08,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:08,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735294138] [2022-07-14 14:14:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:08,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,584 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-14 14:14:08,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:08,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735294138] [2022-07-14 14:14:08,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735294138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:08,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:08,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:14:08,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438665516] [2022-07-14 14:14:08,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:08,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:08,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:08,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:08,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:08,586 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:08,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:08,596 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2022-07-14 14:14:08,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:08,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-14 14:14:08,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:08,597 INFO L225 Difference]: With dead ends: 102 [2022-07-14 14:14:08,597 INFO L226 Difference]: Without dead ends: 91 [2022-07-14 14:14:08,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:08,598 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:08,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 112 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:08,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-07-14 14:14:08,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-07-14 14:14:08,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 83 states have (on average 1.2048192771084338) internal successors, (100), 88 states have internal predecessors, (100), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:08,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 102 transitions. [2022-07-14 14:14:08,601 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 102 transitions. Word has length 53 [2022-07-14 14:14:08,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:08,602 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 102 transitions. [2022-07-14 14:14:08,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:08,602 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 102 transitions. [2022-07-14 14:14:08,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 14:14:08,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:08,602 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:08,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 14:14:08,603 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:08,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1974474060, now seen corresponding path program 1 times [2022-07-14 14:14:08,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:08,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018811918] [2022-07-14 14:14:08,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:08,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,658 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-07-14 14:14:08,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:08,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018811918] [2022-07-14 14:14:08,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018811918] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:08,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 14:14:08,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 14:14:08,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241991633] [2022-07-14 14:14:08,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:08,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:08,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:08,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:08,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:08,660 INFO L87 Difference]: Start difference. First operand 91 states and 102 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:08,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:08,667 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2022-07-14 14:14:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:08,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-07-14 14:14:08,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:08,668 INFO L225 Difference]: With dead ends: 91 [2022-07-14 14:14:08,668 INFO L226 Difference]: Without dead ends: 90 [2022-07-14 14:14:08,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 14:14:08,668 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:08,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 110 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:08,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-07-14 14:14:08,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-07-14 14:14:08,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 83 states have (on average 1.1927710843373494) internal successors, (99), 87 states have internal predecessors, (99), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:08,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2022-07-14 14:14:08,672 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 56 [2022-07-14 14:14:08,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:08,672 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2022-07-14 14:14:08,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:08,672 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2022-07-14 14:14:08,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-14 14:14:08,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:08,673 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:08,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 14:14:08,673 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:08,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:08,674 INFO L85 PathProgramCache]: Analyzing trace with hash -988340173, now seen corresponding path program 1 times [2022-07-14 14:14:08,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:08,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135614091] [2022-07-14 14:14:08,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:08,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-14 14:14:08,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:08,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135614091] [2022-07-14 14:14:08,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135614091] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:08,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183097037] [2022-07-14 14:14:08,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:08,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:08,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:08,756 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) [2022-07-14 14:14:08,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 14:14:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:08,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:08,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-14 14:14:09,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:09,016 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-14 14:14:09,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183097037] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:09,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:14:09,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-14 14:14:09,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270642604] [2022-07-14 14:14:09,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:09,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:14:09,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:09,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:14:09,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:14:09,018 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:09,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:09,038 INFO L93 Difference]: Finished difference Result 150 states and 175 transitions. [2022-07-14 14:14:09,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:14:09,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-07-14 14:14:09,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:09,039 INFO L225 Difference]: With dead ends: 150 [2022-07-14 14:14:09,039 INFO L226 Difference]: Without dead ends: 108 [2022-07-14 14:14:09,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:14:09,040 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 12 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:09,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 219 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:09,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-07-14 14:14:09,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2022-07-14 14:14:09,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 101 states have (on average 1.1584158415841583) internal successors, (117), 105 states have internal predecessors, (117), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:09,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 119 transitions. [2022-07-14 14:14:09,048 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 119 transitions. Word has length 56 [2022-07-14 14:14:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:09,048 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 119 transitions. [2022-07-14 14:14:09,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 119 transitions. [2022-07-14 14:14:09,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-14 14:14:09,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:09,049 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:09,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:09,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:09,267 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:09,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1079153938, now seen corresponding path program 1 times [2022-07-14 14:14:09,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:09,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474500027] [2022-07-14 14:14:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:09,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:09,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:09,345 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-14 14:14:09,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:09,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474500027] [2022-07-14 14:14:09,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474500027] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:09,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820820675] [2022-07-14 14:14:09,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:09,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:09,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:09,360 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) [2022-07-14 14:14:09,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 14:14:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:09,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:09,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:09,613 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-14 14:14:09,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:09,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820820675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:09,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:14:09,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-14 14:14:09,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430606090] [2022-07-14 14:14:09,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:09,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 14:14:09,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:09,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 14:14:09,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:09,614 INFO L87 Difference]: Start difference. First operand 108 states and 119 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:09,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:09,624 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2022-07-14 14:14:09,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 14:14:09,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2022-07-14 14:14:09,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:09,625 INFO L225 Difference]: With dead ends: 108 [2022-07-14 14:14:09,625 INFO L226 Difference]: Without dead ends: 107 [2022-07-14 14:14:09,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:09,626 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 10 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:09,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 145 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:09,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-07-14 14:14:09,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2022-07-14 14:14:09,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 99 states have (on average 1.1515151515151516) internal successors, (114), 102 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2022-07-14 14:14:09,630 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 57 [2022-07-14 14:14:09,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:09,630 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2022-07-14 14:14:09,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:09,630 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2022-07-14 14:14:09,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-07-14 14:14:09,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:09,631 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:09,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:09,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:09,853 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:09,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:09,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1657866091, now seen corresponding path program 1 times [2022-07-14 14:14:09,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:09,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256242871] [2022-07-14 14:14:09,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:09,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:09,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:09,894 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-14 14:14:09,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:09,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256242871] [2022-07-14 14:14:09,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256242871] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:09,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365568857] [2022-07-14 14:14:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:09,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:09,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:09,896 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) [2022-07-14 14:14:09,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 14:14:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:10,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:14:10,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-07-14 14:14:10,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:10,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365568857] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:10,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:14:10,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-14 14:14:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635897753] [2022-07-14 14:14:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:10,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:10,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:10,153 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:10,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:10,162 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2022-07-14 14:14:10,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:10,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2022-07-14 14:14:10,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:10,163 INFO L225 Difference]: With dead ends: 109 [2022-07-14 14:14:10,163 INFO L226 Difference]: Without dead ends: 108 [2022-07-14 14:14:10,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:10,164 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 2 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:10,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 107 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:10,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-07-14 14:14:10,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2022-07-14 14:14:10,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1485148514851484) internal successors, (116), 104 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:10,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 118 transitions. [2022-07-14 14:14:10,168 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 118 transitions. Word has length 61 [2022-07-14 14:14:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:10,185 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 118 transitions. [2022-07-14 14:14:10,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:10,185 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 118 transitions. [2022-07-14 14:14:10,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-07-14 14:14:10,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:10,186 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:10,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:10,401 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,SelfDestructingSolverStorable15 [2022-07-14 14:14:10,401 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:10,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:10,402 INFO L85 PathProgramCache]: Analyzing trace with hash 145758976, now seen corresponding path program 1 times [2022-07-14 14:14:10,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:10,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114007784] [2022-07-14 14:14:10,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:10,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:10,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:10,445 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-14 14:14:10,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:10,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114007784] [2022-07-14 14:14:10,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114007784] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:10,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153693896] [2022-07-14 14:14:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:10,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:10,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:10,460 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) [2022-07-14 14:14:10,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 14:14:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:10,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 14:14:10,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:10,756 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-07-14 14:14:10,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 14:14:10,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153693896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 14:14:10,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 14:14:10,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-07-14 14:14:10,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578934533] [2022-07-14 14:14:10,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 14:14:10,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 14:14:10,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:10,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 14:14:10,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:10,757 INFO L87 Difference]: Start difference. First operand 107 states and 118 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:10,764 INFO L93 Difference]: Finished difference Result 107 states and 118 transitions. [2022-07-14 14:14:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 14:14:10,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2022-07-14 14:14:10,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:10,765 INFO L225 Difference]: With dead ends: 107 [2022-07-14 14:14:10,765 INFO L226 Difference]: Without dead ends: 106 [2022-07-14 14:14:10,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 14:14:10,766 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 1 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:10,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 106 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:10,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-07-14 14:14:10,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-07-14 14:14:10,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.1386138613861385) internal successors, (115), 103 states have internal predecessors, (115), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:10,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2022-07-14 14:14:10,769 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 62 [2022-07-14 14:14:10,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:10,770 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2022-07-14 14:14:10,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:10,770 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2022-07-14 14:14:10,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-14 14:14:10,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:10,770 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-07-14 14:14:10,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:10,988 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,SelfDestructingSolverStorable16 [2022-07-14 14:14:10,988 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:10,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:10,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1659537149, now seen corresponding path program 1 times [2022-07-14 14:14:10,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:10,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700214351] [2022-07-14 14:14:10,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:10,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:11,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:11,030 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-14 14:14:11,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:11,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700214351] [2022-07-14 14:14:11,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700214351] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:11,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897413075] [2022-07-14 14:14:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:11,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:11,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:11,044 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) [2022-07-14 14:14:11,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 14:14:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:11,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:11,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:11,258 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-14 14:14:11,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:11,270 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-14 14:14:11,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897413075] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:11,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:14:11,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-14 14:14:11,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779434846] [2022-07-14 14:14:11,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:11,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 14:14:11,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:11,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 14:14:11,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:14:11,272 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:11,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:11,288 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2022-07-14 14:14:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 14:14:11,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2022-07-14 14:14:11,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:11,289 INFO L225 Difference]: With dead ends: 125 [2022-07-14 14:14:11,289 INFO L226 Difference]: Without dead ends: 115 [2022-07-14 14:14:11,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 14:14:11,290 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 8 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:11,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 214 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-07-14 14:14:11,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-07-14 14:14:11,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 110 states have (on average 1.1272727272727272) internal successors, (124), 112 states have internal predecessors, (124), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:11,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 126 transitions. [2022-07-14 14:14:11,310 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 126 transitions. Word has length 64 [2022-07-14 14:14:11,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:11,310 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 126 transitions. [2022-07-14 14:14:11,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:11,310 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 126 transitions. [2022-07-14 14:14:11,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-14 14:14:11,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:11,311 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 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] [2022-07-14 14:14:11,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:11,527 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,SelfDestructingSolverStorable17 [2022-07-14 14:14:11,527 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:11,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:11,528 INFO L85 PathProgramCache]: Analyzing trace with hash -853883124, now seen corresponding path program 2 times [2022-07-14 14:14:11,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:11,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859361380] [2022-07-14 14:14:11,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:11,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:11,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:11,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-07-14 14:14:11,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:11,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859361380] [2022-07-14 14:14:11,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859361380] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:11,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400202251] [2022-07-14 14:14:11,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:14:11,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:11,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:11,634 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) [2022-07-14 14:14:11,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-14 14:14:11,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:14:11,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:14:11,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:11,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:11,870 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-14 14:14:11,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-14 14:14:11,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400202251] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:11,912 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:14:11,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-07-14 14:14:11,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798924295] [2022-07-14 14:14:11,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:11,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 14:14:11,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:11,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 14:14:11,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:14:11,913 INFO L87 Difference]: Start difference. First operand 115 states and 126 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:11,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:11,968 INFO L93 Difference]: Finished difference Result 120 states and 132 transitions. [2022-07-14 14:14:11,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 14:14:11,968 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-07-14 14:14:11,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:11,969 INFO L225 Difference]: With dead ends: 120 [2022-07-14 14:14:11,969 INFO L226 Difference]: Without dead ends: 77 [2022-07-14 14:14:11,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-07-14 14:14:11,969 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 25 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:11,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 239 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:11,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-07-14 14:14:11,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-07-14 14:14:11,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 73 states have (on average 1.0684931506849316) internal successors, (78), 74 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:11,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2022-07-14 14:14:11,972 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 73 [2022-07-14 14:14:11,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:11,972 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2022-07-14 14:14:11,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 8 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:11,973 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2022-07-14 14:14:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-14 14:14:11,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:11,973 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:11,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:12,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:12,187 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:12,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:12,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1136641635, now seen corresponding path program 2 times [2022-07-14 14:14:12,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:12,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655079478] [2022-07-14 14:14:12,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:12,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:12,268 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-07-14 14:14:12,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:12,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655079478] [2022-07-14 14:14:12,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655079478] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:12,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136701013] [2022-07-14 14:14:12,268 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 14:14:12,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:12,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:12,269 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:12,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-14 14:14:12,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 14:14:12,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 14:14:12,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 14:14:12,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:12,578 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-14 14:14:12,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-14 14:14:12,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136701013] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:12,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:14:12,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-07-14 14:14:12,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937621740] [2022-07-14 14:14:12,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:12,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 14:14:12,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:12,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 14:14:12,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-14 14:14:12,629 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:12,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:12,679 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2022-07-14 14:14:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 14:14:12,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2022-07-14 14:14:12,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:12,680 INFO L225 Difference]: With dead ends: 94 [2022-07-14 14:14:12,680 INFO L226 Difference]: Without dead ends: 93 [2022-07-14 14:14:12,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-07-14 14:14:12,680 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:12,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 57 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 14:14:12,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-07-14 14:14:12,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 76. [2022-07-14 14:14:12,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 73 states have (on average 1.0547945205479452) internal successors, (77), 73 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:12,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2022-07-14 14:14:12,683 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 74 [2022-07-14 14:14:12,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:12,683 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2022-07-14 14:14:12,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:12,683 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2022-07-14 14:14:12,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-14 14:14:12,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 14:14:12,684 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:12,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-14 14:14:12,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:12,895 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-14 14:14:12,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 14:14:12,896 INFO L85 PathProgramCache]: Analyzing trace with hash 876152403, now seen corresponding path program 1 times [2022-07-14 14:14:12,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 14:14:12,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989678533] [2022-07-14 14:14:12,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:12,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 14:14:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:13,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-14 14:14:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:13,022 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2022-07-14 14:14:13,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 14:14:13,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989678533] [2022-07-14 14:14:13,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989678533] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 14:14:13,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352937044] [2022-07-14 14:14:13,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 14:14:13,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 14:14:13,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 14:14:13,040 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 14:14:13,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-14 14:14:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 14:14:13,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 14:14:13,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 14:14:13,441 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-07-14 14:14:13,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 14:14:13,503 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-07-14 14:14:13,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352937044] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 14:14:13,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 14:14:13,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-07-14 14:14:13,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59787312] [2022-07-14 14:14:13,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 14:14:13,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 14:14:13,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 14:14:13,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 14:14:13,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2022-07-14 14:14:13,505 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:13,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 14:14:13,709 INFO L93 Difference]: Finished difference Result 130 states and 147 transitions. [2022-07-14 14:14:13,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-14 14:14:13,709 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2022-07-14 14:14:13,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 14:14:13,710 INFO L225 Difference]: With dead ends: 130 [2022-07-14 14:14:13,710 INFO L226 Difference]: Without dead ends: 0 [2022-07-14 14:14:13,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 14:14:13,711 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 40 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 14:14:13,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 93 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 14:14:13,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-14 14:14:13,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-14 14:14:13,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:14:13,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-14 14:14:13,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 75 [2022-07-14 14:14:13,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 14:14:13,711 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 14:14:13,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-14 14:14:13,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-14 14:14:13,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-14 14:14:13,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2022-07-14 14:14:13,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2022-07-14 14:14:13,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2022-07-14 14:14:13,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2022-07-14 14:14:13,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2022-07-14 14:14:13,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2022-07-14 14:14:13,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2022-07-14 14:14:13,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2022-07-14 14:14:13,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2022-07-14 14:14:13,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2022-07-14 14:14:13,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2022-07-14 14:14:13,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2022-07-14 14:14:13,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2022-07-14 14:14:13,715 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2022-07-14 14:14:13,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2022-07-14 14:14:13,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2022-07-14 14:14:13,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2022-07-14 14:14:13,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2022-07-14 14:14:13,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2022-07-14 14:14:13,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2022-07-14 14:14:13,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2022-07-14 14:14:13,716 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2022-07-14 14:14:13,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2022-07-14 14:14:13,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2022-07-14 14:14:13,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-07-14 14:14:13,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-14 14:14:13,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-14 14:14:14,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1332) no Hoare annotation was computed. [2022-07-14 14:14:14,340 INFO L899 garLoopResultBuilder]: For program point L1340-2(lines 1340 1341) no Hoare annotation was computed. [2022-07-14 14:14:14,340 INFO L899 garLoopResultBuilder]: For program point L1340-3(line 1340) no Hoare annotation was computed. [2022-07-14 14:14:14,340 INFO L895 garLoopResultBuilder]: At program point L1340-4(lines 1340 1341) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~j~0#1|)) (.cse2 (= |ULTIMATE.start_main_~i~5#1| 0)) (.cse1 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse3 (<= 1 |ULTIMATE.start_main_~i~4#1|)) (.cse5 (< |ULTIMATE.start_main_~i~5#1| 2147483646)) (.cse7 (= |ULTIMATE.start_main_~j~0#1| 0)) (.cse4 (<= |ULTIMATE.start_main_~argc~0#1| 10000)) (.cse6 (<= 1 |ULTIMATE.start_main_~i~5#1|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse5 .cse4 .cse6) (and .cse1 .cse2 .cse3 .cse7 .cse4) (and .cse1 .cse3 .cse5 .cse7 .cse4 .cse6))) [2022-07-14 14:14:14,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1202) no Hoare annotation was computed. [2022-07-14 14:14:14,340 INFO L899 garLoopResultBuilder]: For program point L1225(lines 1225 1228) no Hoare annotation was computed. [2022-07-14 14:14:14,340 INFO L899 garLoopResultBuilder]: For program point L1192(line 1192) no Hoare annotation was computed. [2022-07-14 14:14:14,340 INFO L899 garLoopResultBuilder]: For program point L1192-1(line 1192) no Hoare annotation was computed. [2022-07-14 14:14:14,340 INFO L899 garLoopResultBuilder]: For program point L1225-2(lines 1166 1232) no Hoare annotation was computed. [2022-07-14 14:14:14,340 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L895 garLoopResultBuilder]: At program point L1176(lines 1176 1188) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000)) [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point L1176-2(lines 1173 1223) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point L1325-2(lines 1325 1326) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point L1325-3(line 1325) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1335) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L895 garLoopResultBuilder]: At program point L1325-4(lines 1325 1326) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~4#1| 0) (<= 1 |ULTIMATE.start_main_~i~4#1|)) [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point L1193(lines 1193 1211) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point L1325-5(lines 1325 1326) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point L1193-1(lines 1193 1211) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1335) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1213) no Hoare annotation was computed. [2022-07-14 14:14:14,341 INFO L899 garLoopResultBuilder]: For program point L1228(line 1228) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1195(lines 1195 1210) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1228-2(line 1228) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1344-2(lines 1344 1345) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1344-3(line 1344) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L895 garLoopResultBuilder]: At program point L1344-4(lines 1344 1345) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~6#1| 2147483646) (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 0 |ULTIMATE.start_main_~i~6#1|) (<= 1 |ULTIMATE.start_dirname_~i~0#1|)) [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1344-5(lines 1344 1345) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1213) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1229-1(lines 1229 1230) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L895 garLoopResultBuilder]: At program point L1163(lines 1159 1164) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_dirname_~i~0#1|)) [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1213(line 1213) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1213-1(line 1213) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1197) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1197(line 1197) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1197-1(line 1197) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1181(line 1181) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point L1181-2(line 1181) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1197) no Hoare annotation was computed. [2022-07-14 14:14:14,342 INFO L895 garLoopResultBuilder]: At program point L1231(lines 1165 1232) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000)) [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point L1198(lines 1198 1209) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1344) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1332) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L895 garLoopResultBuilder]: At program point L1331(line 1331) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~argc~0#1| 2147483647) (<= 1 |ULTIMATE.start_main_~i~4#1|)) [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point L1331-1(line 1331) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1340) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point L1332(line 1332) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1344) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point L1200(lines 1200 1208) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1340) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L902 garLoopResultBuilder]: At program point L1349(lines 1321 1350) the Hoare annotation is: true [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1325) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1206) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point L1333(line 1333) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point L1333-1(line 1333) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1325) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L895 garLoopResultBuilder]: At program point L1185(lines 1176 1188) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000)) [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1206) no Hoare annotation was computed. [2022-07-14 14:14:14,343 INFO L899 garLoopResultBuilder]: For program point L1202(line 1202) no Hoare annotation was computed. [2022-07-14 14:14:14,344 INFO L899 garLoopResultBuilder]: For program point L1202-1(line 1202) no Hoare annotation was computed. [2022-07-14 14:14:14,344 INFO L899 garLoopResultBuilder]: For program point L1335-2(lines 1335 1342) no Hoare annotation was computed. [2022-07-14 14:14:14,344 INFO L899 garLoopResultBuilder]: For program point L1335-3(line 1335) no Hoare annotation was computed. [2022-07-14 14:14:14,344 INFO L895 garLoopResultBuilder]: At program point L1335-4(lines 1335 1342) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~i~4#1|)) (.cse2 (<= |ULTIMATE.start_main_~argc~0#1| 10000))) (or (and .cse0 (= |ULTIMATE.start_main_~i~5#1| 0) .cse1 .cse2) (and (<= 1 |ULTIMATE.start_main_~j~0#1|) .cse0 (<= |ULTIMATE.start_main_~i~5#1| 2147483646) .cse1 .cse2 (<= 1 |ULTIMATE.start_main_~i~5#1|)))) [2022-07-14 14:14:14,344 INFO L899 garLoopResultBuilder]: For program point L1203(lines 1203 1207) no Hoare annotation was computed. [2022-07-14 14:14:14,344 INFO L899 garLoopResultBuilder]: For program point L1335-5(lines 1335 1342) no Hoare annotation was computed. [2022-07-14 14:14:14,345 INFO L899 garLoopResultBuilder]: For program point L1236-2(lines 1236 1237) no Hoare annotation was computed. [2022-07-14 14:14:14,345 INFO L899 garLoopResultBuilder]: For program point L1236-3(line 1236) no Hoare annotation was computed. [2022-07-14 14:14:14,345 INFO L895 garLoopResultBuilder]: At program point L1236-4(lines 1236 1237) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~argc~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~i~4#1|)) (.cse2 (<= |ULTIMATE.start_main_~argc~0#1| 10000))) (or (and (= |ULTIMATE.start_dirname_~i~0#1| 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= 1 |ULTIMATE.start_dirname_~i~0#1|)))) [2022-07-14 14:14:14,345 INFO L899 garLoopResultBuilder]: For program point L1236-5(lines 1236 1237) no Hoare annotation was computed. [2022-07-14 14:14:14,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1192) no Hoare annotation was computed. [2022-07-14 14:14:14,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1192) no Hoare annotation was computed. [2022-07-14 14:14:14,345 INFO L899 garLoopResultBuilder]: For program point L1221(lines 1221 1222) no Hoare annotation was computed. [2022-07-14 14:14:14,345 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-14 14:14:14,345 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1333) no Hoare annotation was computed. [2022-07-14 14:14:14,345 INFO L899 garLoopResultBuilder]: For program point L1205(lines 1205 1206) no Hoare annotation was computed. [2022-07-14 14:14:14,346 INFO L899 garLoopResultBuilder]: For program point L1172(lines 1172 1223) no Hoare annotation was computed. [2022-07-14 14:14:14,346 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1236) no Hoare annotation was computed. [2022-07-14 14:14:14,346 INFO L899 garLoopResultBuilder]: For program point L1172-1(lines 1172 1223) no Hoare annotation was computed. [2022-07-14 14:14:14,346 INFO L899 garLoopResultBuilder]: For program point L1189-1(lines 1189 1219) no Hoare annotation was computed. [2022-07-14 14:14:14,346 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1333) no Hoare annotation was computed. [2022-07-14 14:14:14,346 INFO L895 garLoopResultBuilder]: At program point L1239(lines 1233 1240) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_dirname_~i~0#1|)) [2022-07-14 14:14:14,346 INFO L899 garLoopResultBuilder]: For program point L1206(line 1206) no Hoare annotation was computed. [2022-07-14 14:14:14,346 INFO L899 garLoopResultBuilder]: For program point L1206-1(line 1206) no Hoare annotation was computed. [2022-07-14 14:14:14,347 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1236) no Hoare annotation was computed. [2022-07-14 14:14:14,347 INFO L895 garLoopResultBuilder]: At program point L1157(lines 1148 1158) the Hoare annotation is: (and (<= 1 |ULTIMATE.start_main_~argc~0#1|) (<= 1 |ULTIMATE.start_main_~i~4#1|) (<= |ULTIMATE.start_main_~argc~0#1| 10000) (<= 1 |ULTIMATE.start_dirname_~i~0#1|)) [2022-07-14 14:14:14,347 INFO L899 garLoopResultBuilder]: For program point L1141(lines 1141 1144) no Hoare annotation was computed. [2022-07-14 14:14:14,347 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1202) no Hoare annotation was computed. [2022-07-14 14:14:14,347 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true [2022-07-14 14:14:14,347 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2022-07-14 14:14:14,347 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2022-07-14 14:14:14,347 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2022-07-14 14:14:14,350 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 14:14:14,351 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-14 14:14:14,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.07 02:14:14 BoogieIcfgContainer [2022-07-14 14:14:14,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-14 14:14:14,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 14:14:14,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 14:14:14,383 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 14:14:14,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:14:04" (3/4) ... [2022-07-14 14:14:14,386 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-14 14:14:14,390 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-07-14 14:14:14,394 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2022-07-14 14:14:14,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-07-14 14:14:14,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-14 14:14:14,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-14 14:14:14,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-14 14:14:14,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-14 14:14:14,444 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 14:14:14,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 14:14:14,445 INFO L158 Benchmark]: Toolchain (without parser) took 11098.59ms. Allocated memory was 86.0MB in the beginning and 218.1MB in the end (delta: 132.1MB). Free memory was 49.3MB in the beginning and 166.2MB in the end (delta: -117.0MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-07-14 14:14:14,445 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 24.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 14:14:14,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.05ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 49.1MB in the beginning and 63.6MB in the end (delta: -14.4MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-07-14 14:14:14,446 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.91ms. Allocated memory is still 119.5MB. Free memory was 63.6MB in the beginning and 60.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-14 14:14:14,446 INFO L158 Benchmark]: Boogie Preprocessor took 54.78ms. Allocated memory is still 119.5MB. Free memory was 60.5MB in the beginning and 57.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 14:14:14,446 INFO L158 Benchmark]: RCFGBuilder took 454.25ms. Allocated memory is still 119.5MB. Free memory was 57.8MB in the beginning and 86.0MB in the end (delta: -28.2MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2022-07-14 14:14:14,447 INFO L158 Benchmark]: TraceAbstraction took 9833.66ms. Allocated memory was 119.5MB in the beginning and 218.1MB in the end (delta: 98.6MB). Free memory was 85.2MB in the beginning and 172.5MB in the end (delta: -87.3MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. [2022-07-14 14:14:14,448 INFO L158 Benchmark]: Witness Printer took 61.12ms. Allocated memory is still 218.1MB. Free memory was 172.5MB in the beginning and 166.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-14 14:14:14,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 24.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 619.05ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 49.1MB in the beginning and 63.6MB in the end (delta: -14.4MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.91ms. Allocated memory is still 119.5MB. Free memory was 63.6MB in the beginning and 60.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.78ms. Allocated memory is still 119.5MB. Free memory was 60.5MB in the beginning and 57.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.25ms. Allocated memory is still 119.5MB. Free memory was 57.8MB in the beginning and 86.0MB in the end (delta: -28.2MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9833.66ms. Allocated memory was 119.5MB in the beginning and 218.1MB in the end (delta: 98.6MB). Free memory was 85.2MB in the beginning and 172.5MB in the end (delta: -87.3MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. * Witness Printer took 61.12ms. Allocated memory is still 218.1MB. Free memory was 172.5MB in the beginning and 166.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1325]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1325]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1332]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1332]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1340]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1340]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1335]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1335]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1192]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1192]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1197]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1197]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1202]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1202]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1206]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1206]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1213]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1213]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1236]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1236]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1344]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1344]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 93 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 21, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 613 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 610 mSDsluCounter, 3652 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2146 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 428 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 1506 mSDtfsCounter, 428 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1149 GetRequests, 1039 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=9, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 135 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 17 PreInvPairs, 68 NumberOfFragments, 235 HoareAnnotationTreeSize, 17 FomulaSimplifications, 226 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 14 FomulaSimplificationsInter, 2143 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1554 NumberOfCodeBlocks, 1439 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1900 ConstructedInterpolants, 0 QuantifiedInterpolants, 2674 SizeOfPredicates, 5 NumberOfNonLiveVariables, 6064 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 41 InterpolantComputations, 14 PerfectInterpolantSequences, 4319/4710 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold - InvariantResult [Line: 1325]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 1159]: Loop Invariant Derived loop invariant: ((1 <= argc && 1 <= i) && argc <= 10000) && 1 <= i - InvariantResult [Line: 1148]: Loop Invariant Derived loop invariant: ((1 <= argc && 1 <= i) && argc <= 10000) && 1 <= i - InvariantResult [Line: 1176]: Loop Invariant Derived loop invariant: (1 <= argc && 1 <= i) && argc <= 10000 - InvariantResult [Line: 1335]: Loop Invariant Derived loop invariant: (((1 <= argc && i == 0) && 1 <= i) && argc <= 10000) || (((((1 <= j && 1 <= argc) && i <= 2147483646) && 1 <= i) && argc <= 10000) && 1 <= i) - InvariantResult [Line: 1176]: Loop Invariant Derived loop invariant: (1 <= argc && 1 <= i) && argc <= 10000 - InvariantResult [Line: 1340]: Loop Invariant Derived loop invariant: ((((((1 <= j && 1 <= argc) && i == 0) && 1 <= i) && argc <= 10000) || (((((1 <= j && 1 <= argc) && 1 <= i) && i < 2147483646) && argc <= 10000) && 1 <= i)) || ((((1 <= argc && i == 0) && 1 <= i) && j == 0) && argc <= 10000)) || (((((1 <= argc && 1 <= i) && i < 2147483646) && j == 0) && argc <= 10000) && 1 <= i) - InvariantResult [Line: 1236]: Loop Invariant Derived loop invariant: (((i == 0 && 1 <= argc) && 1 <= i) && argc <= 10000) || (((1 <= argc && 1 <= i) && argc <= 10000) && 1 <= i) - InvariantResult [Line: 1165]: Loop Invariant Derived loop invariant: (1 <= argc && 1 <= i) && argc <= 10000 - InvariantResult [Line: 1233]: Loop Invariant Derived loop invariant: ((1 <= argc && 1 <= i) && argc <= 10000) && 1 <= i - InvariantResult [Line: 1344]: Loop Invariant Derived loop invariant: ((((i <= 2147483646 && 1 <= argc) && 1 <= i) && argc <= 10000) && 0 <= i) && 1 <= i - InvariantResult [Line: 1321]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-14 14:14:14,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE