./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:31:10,509 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:31:10,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:31:10,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:31:10,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:31:10,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:31:10,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:31:10,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:31:10,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:31:10,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:31:10,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:31:10,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:31:10,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:31:10,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:31:10,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:31:10,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:31:10,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:31:10,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:31:10,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:31:10,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:31:10,584 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:31:10,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:31:10,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:31:10,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:31:10,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:31:10,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:31:10,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:31:10,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:31:10,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:31:10,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:31:10,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:31:10,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:31:10,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:31:10,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:31:10,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:31:10,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:31:10,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:31:10,596 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:31:10,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:31:10,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:31:10,597 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:31:10,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:31:10,599 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:31:10,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:31:10,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:31:10,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:31:10,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:31:10,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:31:10,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:31:10,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:31:10,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:31:10,626 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:31:10,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:31:10,626 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:31:10,627 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:31:10,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:31:10,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:31:10,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:31:10,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:31:10,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:31:10,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:31:10,628 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:31:10,629 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:31:10,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:31:10,629 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:31:10,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:31:10,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:31:10,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:31:10,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:31:10,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:31:10,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:31:10,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:31:10,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:31:10,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:31:10,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:31:10,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:31:10,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2022-07-13 02:31:10,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:31:10,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:31:10,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:31:10,847 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:31:10,848 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:31:10,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2022-07-13 02:31:10,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f72f9851/bec1d551c8f543cebdce3c38da14f20d/FLAGb89196ffa [2022-07-13 02:31:11,351 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:31:11,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2022-07-13 02:31:11,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f72f9851/bec1d551c8f543cebdce3c38da14f20d/FLAGb89196ffa [2022-07-13 02:31:11,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f72f9851/bec1d551c8f543cebdce3c38da14f20d [2022-07-13 02:31:11,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:31:11,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:31:11,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:31:11,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:31:11,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:31:11,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:31:11" (1/1) ... [2022-07-13 02:31:11,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b412872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:11, skipping insertion in model container [2022-07-13 02:31:11,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:31:11" (1/1) ... [2022-07-13 02:31:11,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:31:11,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:31:12,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2022-07-13 02:31:12,253 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-13 02:31:12,254 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-13 02:31:12,254 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-13 02:31:12,255 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-13 02:31:12,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:31:12,286 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:31:12,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2022-07-13 02:31:12,331 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-13 02:31:12,333 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-13 02:31:12,334 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-13 02:31:12,334 WARN L1550 CHandler]: Possible shadowing of function new [2022-07-13 02:31:12,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:31:12,389 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:31:12,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12 WrapperNode [2022-07-13 02:31:12,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:31:12,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:31:12,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:31:12,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:31:12,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,432 INFO L137 Inliner]: procedures = 278, calls = 64, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 328 [2022-07-13 02:31:12,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:31:12,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:31:12,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:31:12,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:31:12,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:31:12,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:31:12,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:31:12,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:31:12,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (1/1) ... [2022-07-13 02:31:12,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:31:12,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:31:12,517 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) [2022-07-13 02:31:12,548 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 [2022-07-13 02:31:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-13 02:31:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-13 02:31:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-07-13 02:31:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-07-13 02:31:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-13 02:31:12,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-13 02:31:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-07-13 02:31:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-07-13 02:31:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-13 02:31:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-13 02:31:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-13 02:31:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:31:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-13 02:31:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:31:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:31:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:31:12,569 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-13 02:31:12,724 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:31:12,725 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:31:13,082 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:31:13,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:31:13,093 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2022-07-13 02:31:13,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:31:13 BoogieIcfgContainer [2022-07-13 02:31:13,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:31:13,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:31:13,097 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:31:13,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:31:13,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:31:11" (1/3) ... [2022-07-13 02:31:13,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31174896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:31:13, skipping insertion in model container [2022-07-13 02:31:13,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:31:12" (2/3) ... [2022-07-13 02:31:13,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31174896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:31:13, skipping insertion in model container [2022-07-13 02:31:13,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:31:13" (3/3) ... [2022-07-13 02:31:13,102 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2022-07-13 02:31:13,108 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-13 02:31:13,114 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:31:13,114 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-07-13 02:31:13,114 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-13 02:31:13,196 INFO L135 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-07-13 02:31:13,231 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-07-13 02:31:13,246 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 331 places, 372 transitions, 766 flow [2022-07-13 02:31:13,248 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 331 places, 372 transitions, 766 flow [2022-07-13 02:31:13,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 331 places, 372 transitions, 766 flow [2022-07-13 02:31:13,388 INFO L129 PetriNetUnfolder]: 77/603 cut-off events. [2022-07-13 02:31:13,388 INFO L130 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-07-13 02:31:13,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 603 events. 77/603 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3080 event pairs, 0 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 303. Up to 8 conditions per place. [2022-07-13 02:31:13,416 INFO L116 LiptonReduction]: Number of co-enabled transitions 45816 [2022-07-13 02:32:03,070 WARN L233 SmtUtils]: Spent 12.33s on a formula simplification. DAG size of input: 190 DAG size of output: 188 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-13 02:32:18,167 WARN L233 SmtUtils]: Spent 11.53s on a formula simplification. DAG size of input: 190 DAG size of output: 188 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-13 02:32:31,663 WARN L233 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 188 DAG size of output: 186 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-13 02:32:39,493 WARN L233 SmtUtils]: Spent 7.83s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-13 02:32:52,190 WARN L233 SmtUtils]: Spent 12.70s on a formula simplification. DAG size of input: 188 DAG size of output: 186 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-13 02:32:59,743 WARN L233 SmtUtils]: Spent 7.55s on a formula simplification that was a NOOP. DAG size: 178 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-13 02:32:59,773 INFO L131 LiptonReduction]: Checked pairs total: 70525 [2022-07-13 02:32:59,773 INFO L133 LiptonReduction]: Total number of compositions: 360 [2022-07-13 02:32:59,778 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 119 transitions, 260 flow [2022-07-13 02:33:00,057 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9111 states, 8595 states have (on average 3.8594531704479347) internal successors, (33172), 9110 states have internal predecessors, (33172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:00,070 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:33:00,086 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@2c51119a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@25586697 [2022-07-13 02:33:00,086 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2022-07-13 02:33:00,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 9111 states, 8595 states have (on average 3.8594531704479347) internal successors, (33172), 9110 states have internal predecessors, (33172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:00,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-13 02:33:00,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:00,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-13 02:33:00,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:00,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:00,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1506296, now seen corresponding path program 1 times [2022-07-13 02:33:00,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:00,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578255023] [2022-07-13 02:33:00,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:00,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:33:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:33:00,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:00,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578255023] [2022-07-13 02:33:00,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578255023] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:33:00,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:33:00,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:33:00,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148668422] [2022-07-13 02:33:00,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:33:00,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 02:33:00,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:00,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 02:33:00,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:33:00,359 INFO L87 Difference]: Start difference. First operand has 9111 states, 8595 states have (on average 3.8594531704479347) internal successors, (33172), 9110 states have internal predecessors, (33172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:00,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:00,678 INFO L93 Difference]: Finished difference Result 8500 states and 25045 transitions. [2022-07-13 02:33:00,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 02:33:00,689 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-07-13 02:33:00,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:00,752 INFO L225 Difference]: With dead ends: 8500 [2022-07-13 02:33:00,753 INFO L226 Difference]: Without dead ends: 8493 [2022-07-13 02:33:00,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:33:00,759 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:00,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:33:00,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8493 states. [2022-07-13 02:33:01,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8493 to 8493. [2022-07-13 02:33:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8493 states, 8083 states have (on average 3.096869974019547) internal successors, (25032), 8492 states have internal predecessors, (25032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8493 states to 8493 states and 25032 transitions. [2022-07-13 02:33:01,104 INFO L78 Accepts]: Start accepts. Automaton has 8493 states and 25032 transitions. Word has length 3 [2022-07-13 02:33:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:01,105 INFO L495 AbstractCegarLoop]: Abstraction has 8493 states and 25032 transitions. [2022-07-13 02:33:01,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 8493 states and 25032 transitions. [2022-07-13 02:33:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-13 02:33:01,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:01,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-13 02:33:01,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:33:01,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:01,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:01,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1506297, now seen corresponding path program 1 times [2022-07-13 02:33:01,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:01,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917391944] [2022-07-13 02:33:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:01,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:01,149 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:01,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004679763] [2022-07-13 02:33:01,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:01,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:01,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:01,151 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) [2022-07-13 02:33:01,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:33:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:33:01,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:33:01,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:33:01,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:33:01,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:01,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917391944] [2022-07-13 02:33:01,275 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:01,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004679763] [2022-07-13 02:33:01,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004679763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:33:01,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:33:01,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:33:01,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395477421] [2022-07-13 02:33:01,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:33:01,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:33:01,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:01,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:33:01,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:33:01,278 INFO L87 Difference]: Start difference. First operand 8493 states and 25032 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:01,775 INFO L93 Difference]: Finished difference Result 16978 states and 50055 transitions. [2022-07-13 02:33:01,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:33:01,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-07-13 02:33:01,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:01,950 INFO L225 Difference]: With dead ends: 16978 [2022-07-13 02:33:01,951 INFO L226 Difference]: Without dead ends: 16978 [2022-07-13 02:33:01,953 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 [2022-07-13 02:33:01,954 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 92 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:01,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 42 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:33:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16978 states. [2022-07-13 02:33:02,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16978 to 8492. [2022-07-13 02:33:02,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8492 states, 8083 states have (on average 3.096746257577632) internal successors, (25031), 8491 states have internal predecessors, (25031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:02,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8492 states to 8492 states and 25031 transitions. [2022-07-13 02:33:02,510 INFO L78 Accepts]: Start accepts. Automaton has 8492 states and 25031 transitions. Word has length 3 [2022-07-13 02:33:02,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:02,511 INFO L495 AbstractCegarLoop]: Abstraction has 8492 states and 25031 transitions. [2022-07-13 02:33:02,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:02,523 INFO L276 IsEmpty]: Start isEmpty. Operand 8492 states and 25031 transitions. [2022-07-13 02:33:02,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-07-13 02:33:02,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:02,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-07-13 02:33:02,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:02,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:02,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:02,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:02,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1505980, now seen corresponding path program 1 times [2022-07-13 02:33:02,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:02,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220775551] [2022-07-13 02:33:02,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:02,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:02,757 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:02,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1543909825] [2022-07-13 02:33:02,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:02,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:02,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:02,768 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) [2022-07-13 02:33:02,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:33:02,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:33:02,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:33:02,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:02,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:33:02,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:33:02,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:02,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220775551] [2022-07-13 02:33:02,859 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:02,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543909825] [2022-07-13 02:33:02,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543909825] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:33:02,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:33:02,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-07-13 02:33:02,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461915046] [2022-07-13 02:33:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:33:02,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:33:02,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:02,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:33:02,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:33:02,862 INFO L87 Difference]: Start difference. First operand 8492 states and 25031 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:03,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:03,152 INFO L93 Difference]: Finished difference Result 8494 states and 25034 transitions. [2022-07-13 02:33:03,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:33:03,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-07-13 02:33:03,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:03,180 INFO L225 Difference]: With dead ends: 8494 [2022-07-13 02:33:03,180 INFO L226 Difference]: Without dead ends: 8494 [2022-07-13 02:33:03,180 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 [2022-07-13 02:33:03,186 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:03,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:33:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8494 states. [2022-07-13 02:33:03,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8494 to 8494. [2022-07-13 02:33:03,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8494 states, 8085 states have (on average 3.096351267779839) internal successors, (25034), 8493 states have internal predecessors, (25034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:03,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8494 states to 8494 states and 25034 transitions. [2022-07-13 02:33:03,408 INFO L78 Accepts]: Start accepts. Automaton has 8494 states and 25034 transitions. Word has length 3 [2022-07-13 02:33:03,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:03,408 INFO L495 AbstractCegarLoop]: Abstraction has 8494 states and 25034 transitions. [2022-07-13 02:33:03,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:03,409 INFO L276 IsEmpty]: Start isEmpty. Operand 8494 states and 25034 transitions. [2022-07-13 02:33:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 02:33:03,409 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:03,409 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1] [2022-07-13 02:33:03,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:03,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-07-13 02:33:03,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:03,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:03,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1447517875, now seen corresponding path program 1 times [2022-07-13 02:33:03,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:03,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918140304] [2022-07-13 02:33:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:03,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:03,643 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:03,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1269909444] [2022-07-13 02:33:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:03,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:03,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:03,654 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) [2022-07-13 02:33:03,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:33:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:33:03,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 02:33:03,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:33:03,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:33:03,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:03,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918140304] [2022-07-13 02:33:03,760 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:03,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269909444] [2022-07-13 02:33:03,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269909444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:33:03,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:33:03,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:33:03,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241998514] [2022-07-13 02:33:03,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:33:03,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:33:03,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:03,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:33:03,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:33:03,765 INFO L87 Difference]: Start difference. First operand 8494 states and 25034 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:04,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:04,040 INFO L93 Difference]: Finished difference Result 8498 states and 25038 transitions. [2022-07-13 02:33:04,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:33:04,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-13 02:33:04,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:04,066 INFO L225 Difference]: With dead ends: 8498 [2022-07-13 02:33:04,067 INFO L226 Difference]: Without dead ends: 8498 [2022-07-13 02:33:04,067 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 [2022-07-13 02:33:04,069 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:04,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 28 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:33:04,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8498 states. [2022-07-13 02:33:04,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8498 to 8496. [2022-07-13 02:33:04,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8087 states have (on average 3.096080128601459) internal successors, (25038), 8495 states have internal predecessors, (25038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:04,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 25038 transitions. [2022-07-13 02:33:04,320 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 25038 transitions. Word has length 5 [2022-07-13 02:33:04,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:04,320 INFO L495 AbstractCegarLoop]: Abstraction has 8496 states and 25038 transitions. [2022-07-13 02:33:04,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:04,320 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 25038 transitions. [2022-07-13 02:33:04,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 02:33:04,321 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:04,321 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-07-13 02:33:04,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:04,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:04,532 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:04,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:04,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1925764538, now seen corresponding path program 1 times [2022-07-13 02:33:04,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:04,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212492119] [2022-07-13 02:33:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:04,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:04,570 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:04,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431613342] [2022-07-13 02:33:04,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:04,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:04,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:04,572 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) [2022-07-13 02:33:04,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 02:33:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:33:04,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:33:04,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:04,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:33:04,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:33:04,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:33:04,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:04,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212492119] [2022-07-13 02:33:04,735 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:04,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431613342] [2022-07-13 02:33:04,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431613342] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:33:04,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:33:04,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-13 02:33:04,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464892085] [2022-07-13 02:33:04,735 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:33:04,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 02:33:04,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:04,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 02:33:04,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:33:04,736 INFO L87 Difference]: Start difference. First operand 8496 states and 25038 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:05,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:05,163 INFO L93 Difference]: Finished difference Result 8508 states and 25050 transitions. [2022-07-13 02:33:05,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:33:05,164 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-13 02:33:05,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:05,187 INFO L225 Difference]: With dead ends: 8508 [2022-07-13 02:33:05,187 INFO L226 Difference]: Without dead ends: 8508 [2022-07-13 02:33:05,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:33:05,188 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:05,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 56 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:33:05,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8508 states. [2022-07-13 02:33:05,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8508 to 8502. [2022-07-13 02:33:05,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8502 states, 8093 states have (on average 3.0952675151365376) internal successors, (25050), 8501 states have internal predecessors, (25050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:05,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8502 states to 8502 states and 25050 transitions. [2022-07-13 02:33:05,412 INFO L78 Accepts]: Start accepts. Automaton has 8502 states and 25050 transitions. Word has length 6 [2022-07-13 02:33:05,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:05,412 INFO L495 AbstractCegarLoop]: Abstraction has 8502 states and 25050 transitions. [2022-07-13 02:33:05,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:05,413 INFO L276 IsEmpty]: Start isEmpty. Operand 8502 states and 25050 transitions. [2022-07-13 02:33:05,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:33:05,413 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:05,413 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1] [2022-07-13 02:33:05,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:05,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:05,627 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:05,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:05,627 INFO L85 PathProgramCache]: Analyzing trace with hash 644900979, now seen corresponding path program 2 times [2022-07-13 02:33:05,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:05,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084363806] [2022-07-13 02:33:05,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:05,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:05,665 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:05,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1912130843] [2022-07-13 02:33:05,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:33:05,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:05,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:05,667 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) [2022-07-13 02:33:05,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 02:33:05,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:33:05,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:33:05,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:33:05,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-13 02:33:05,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:33:05,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:05,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084363806] [2022-07-13 02:33:05,844 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:05,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912130843] [2022-07-13 02:33:05,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912130843] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:33:05,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:33:05,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:33:05,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575161939] [2022-07-13 02:33:05,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:33:05,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:33:05,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:05,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:33:05,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:33:05,848 INFO L87 Difference]: Start difference. First operand 8502 states and 25050 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:06,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:06,048 INFO L93 Difference]: Finished difference Result 8502 states and 25048 transitions. [2022-07-13 02:33:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:33:06,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-13 02:33:06,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:06,077 INFO L225 Difference]: With dead ends: 8502 [2022-07-13 02:33:06,078 INFO L226 Difference]: Without dead ends: 8502 [2022-07-13 02:33:06,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:33:06,078 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:06,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:33:06,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8502 states. [2022-07-13 02:33:06,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8502 to 8502. [2022-07-13 02:33:06,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8502 states, 8093 states have (on average 3.0950203879896208) internal successors, (25048), 8501 states have internal predecessors, (25048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:06,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8502 states to 8502 states and 25048 transitions. [2022-07-13 02:33:06,313 INFO L78 Accepts]: Start accepts. Automaton has 8502 states and 25048 transitions. Word has length 9 [2022-07-13 02:33:06,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:06,314 INFO L495 AbstractCegarLoop]: Abstraction has 8502 states and 25048 transitions. [2022-07-13 02:33:06,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:06,314 INFO L276 IsEmpty]: Start isEmpty. Operand 8502 states and 25048 transitions. [2022-07-13 02:33:06,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-13 02:33:06,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:06,315 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 1, 1, 1] [2022-07-13 02:33:06,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:06,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:06,529 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:06,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:06,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1482895188, now seen corresponding path program 3 times [2022-07-13 02:33:06,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:06,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720586924] [2022-07-13 02:33:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:06,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:06,581 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:06,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1691065527] [2022-07-13 02:33:06,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:33:06,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:06,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:06,583 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) [2022-07-13 02:33:06,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 02:33:06,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 02:33:06,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:33:06,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 02:33:06,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 02:33:06,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:33:07,095 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 02:33:07,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:07,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720586924] [2022-07-13 02:33:07,096 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:07,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691065527] [2022-07-13 02:33:07,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691065527] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:33:07,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:33:07,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 8 [2022-07-13 02:33:07,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502959639] [2022-07-13 02:33:07,096 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:33:07,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 02:33:07,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:07,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 02:33:07,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:33:07,097 INFO L87 Difference]: Start difference. First operand 8502 states and 25048 transitions. Second operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:12,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:12,879 INFO L93 Difference]: Finished difference Result 16994 states and 50080 transitions. [2022-07-13 02:33:12,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-13 02:33:12,880 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-13 02:33:12,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:12,923 INFO L225 Difference]: With dead ends: 16994 [2022-07-13 02:33:12,923 INFO L226 Difference]: Without dead ends: 16994 [2022-07-13 02:33:12,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:33:12,924 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 191 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:12,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 70 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-07-13 02:33:12,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16994 states. [2022-07-13 02:33:13,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16994 to 8507. [2022-07-13 02:33:13,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8507 states, 8099 states have (on average 3.093715273490554) internal successors, (25056), 8506 states have internal predecessors, (25056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8507 states to 8507 states and 25056 transitions. [2022-07-13 02:33:13,207 INFO L78 Accepts]: Start accepts. Automaton has 8507 states and 25056 transitions. Word has length 10 [2022-07-13 02:33:13,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:13,207 INFO L495 AbstractCegarLoop]: Abstraction has 8507 states and 25056 transitions. [2022-07-13 02:33:13,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:13,207 INFO L276 IsEmpty]: Start isEmpty. Operand 8507 states and 25056 transitions. [2022-07-13 02:33:13,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-13 02:33:13,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:13,208 INFO L195 NwaCegarLoop]: trace histogram [6, 2, 1, 1, 1] [2022-07-13 02:33:13,225 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:13,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:13,423 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:13,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:13,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1274900582, now seen corresponding path program 1 times [2022-07-13 02:33:13,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:13,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620982035] [2022-07-13 02:33:13,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:13,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:13,489 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:13,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809591849] [2022-07-13 02:33:13,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:13,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:13,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:13,491 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) [2022-07-13 02:33:13,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:33:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:33:13,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1536 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:33:13,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:13,937 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 02:33:13,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:33:13,977 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 02:33:13,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:13,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620982035] [2022-07-13 02:33:13,978 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:13,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809591849] [2022-07-13 02:33:13,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809591849] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:33:13,978 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:33:13,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-13 02:33:13,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370597862] [2022-07-13 02:33:13,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:33:13,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:33:13,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:13,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:33:13,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:33:13,979 INFO L87 Difference]: Start difference. First operand 8507 states and 25056 transitions. Second operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:14,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:14,799 INFO L93 Difference]: Finished difference Result 8540 states and 25092 transitions. [2022-07-13 02:33:14,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:33:14,799 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-13 02:33:14,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:14,821 INFO L225 Difference]: With dead ends: 8540 [2022-07-13 02:33:14,821 INFO L226 Difference]: Without dead ends: 8540 [2022-07-13 02:33:14,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:33:14,822 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 39 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:14,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 84 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 02:33:14,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2022-07-13 02:33:14,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 8525. [2022-07-13 02:33:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8525 states, 8117 states have (on average 3.09128988542565) internal successors, (25092), 8524 states have internal predecessors, (25092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:14,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8525 states to 8525 states and 25092 transitions. [2022-07-13 02:33:14,999 INFO L78 Accepts]: Start accepts. Automaton has 8525 states and 25092 transitions. Word has length 11 [2022-07-13 02:33:14,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:14,999 INFO L495 AbstractCegarLoop]: Abstraction has 8525 states and 25092 transitions. [2022-07-13 02:33:14,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:14,999 INFO L276 IsEmpty]: Start isEmpty. Operand 8525 states and 25092 transitions. [2022-07-13 02:33:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:33:15,000 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:15,000 INFO L195 NwaCegarLoop]: trace histogram [12, 2, 1, 1, 1] [2022-07-13 02:33:15,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:15,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:15,216 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:15,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:15,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1901818630, now seen corresponding path program 2 times [2022-07-13 02:33:15,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:15,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534185698] [2022-07-13 02:33:15,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:15,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:15,316 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:15,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095831207] [2022-07-13 02:33:15,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:33:15,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:15,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:15,317 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) [2022-07-13 02:33:15,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 02:33:16,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:33:16,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:33:16,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 02:33:16,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:16,146 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 02:33:16,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:33:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 34 proven. 55 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-13 02:33:16,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:16,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534185698] [2022-07-13 02:33:16,325 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:16,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095831207] [2022-07-13 02:33:16,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095831207] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:33:16,325 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:33:16,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2022-07-13 02:33:16,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222772247] [2022-07-13 02:33:16,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:33:16,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-13 02:33:16,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:16,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-13 02:33:16,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:33:16,334 INFO L87 Difference]: Start difference. First operand 8525 states and 25092 transitions. Second operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:17,685 INFO L93 Difference]: Finished difference Result 8600 states and 25164 transitions. [2022-07-13 02:33:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 02:33:17,685 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-13 02:33:17,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:17,705 INFO L225 Difference]: With dead ends: 8600 [2022-07-13 02:33:17,705 INFO L226 Difference]: Without dead ends: 8600 [2022-07-13 02:33:17,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 02:33:17,706 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 83 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:17,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 98 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-13 02:33:17,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8600 states. [2022-07-13 02:33:17,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8600 to 8561. [2022-07-13 02:33:17,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8561 states, 8153 states have (on average 3.0864712375812586) internal successors, (25164), 8560 states have internal predecessors, (25164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8561 states to 8561 states and 25164 transitions. [2022-07-13 02:33:17,882 INFO L78 Accepts]: Start accepts. Automaton has 8561 states and 25164 transitions. Word has length 17 [2022-07-13 02:33:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:17,882 INFO L495 AbstractCegarLoop]: Abstraction has 8561 states and 25164 transitions. [2022-07-13 02:33:17,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8561 states and 25164 transitions. [2022-07-13 02:33:17,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-13 02:33:17,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:17,883 INFO L195 NwaCegarLoop]: trace histogram [24, 2, 1, 1, 1] [2022-07-13 02:33:17,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:18,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-13 02:33:18,084 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:18,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:18,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1796992954, now seen corresponding path program 3 times [2022-07-13 02:33:18,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:18,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796920330] [2022-07-13 02:33:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:18,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:18,330 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:18,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314289439] [2022-07-13 02:33:18,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 02:33:18,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:18,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:18,356 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) [2022-07-13 02:33:18,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 02:33:19,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-07-13 02:33:19,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:33:19,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 02:33:19,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:19,187 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2022-07-13 02:33:19,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:33:19,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:19,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796920330] [2022-07-13 02:33:19,188 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:19,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314289439] [2022-07-13 02:33:19,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314289439] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:33:19,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:33:19,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 02:33:19,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555302844] [2022-07-13 02:33:19,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:33:19,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 02:33:19,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:19,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 02:33:19,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:33:19,190 INFO L87 Difference]: Start difference. First operand 8561 states and 25164 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2022-07-13 02:33:19,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:19,515 INFO L93 Difference]: Finished difference Result 8559 states and 25120 transitions. [2022-07-13 02:33:19,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:33:19,516 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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 29 [2022-07-13 02:33:19,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:19,537 INFO L225 Difference]: With dead ends: 8559 [2022-07-13 02:33:19,537 INFO L226 Difference]: Without dead ends: 8559 [2022-07-13 02:33:19,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:33:19,538 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 176 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:19,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 14 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-13 02:33:19,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8559 states. [2022-07-13 02:33:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8559 to 8559. [2022-07-13 02:33:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8559 states, 8153 states have (on average 3.0810744511222863) internal successors, (25120), 8558 states have internal predecessors, (25120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:19,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8559 states to 8559 states and 25120 transitions. [2022-07-13 02:33:19,698 INFO L78 Accepts]: Start accepts. Automaton has 8559 states and 25120 transitions. Word has length 29 [2022-07-13 02:33:19,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:19,698 INFO L495 AbstractCegarLoop]: Abstraction has 8559 states and 25120 transitions. [2022-07-13 02:33:19,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2022-07-13 02:33:19,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8559 states and 25120 transitions. [2022-07-13 02:33:19,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-13 02:33:19,699 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:19,699 INFO L195 NwaCegarLoop]: trace histogram [44, 2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:33:19,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-13 02:33:19,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-13 02:33:19,900 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:19,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1412888912, now seen corresponding path program 1 times [2022-07-13 02:33:19,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:19,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444631617] [2022-07-13 02:33:19,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:19,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:20,203 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:20,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899856734] [2022-07-13 02:33:20,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:20,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:20,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:20,205 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) [2022-07-13 02:33:20,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 02:33:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:33:22,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 10472 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 02:33:22,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 531 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-07-13 02:33:22,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:33:22,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 531 proven. 253 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-07-13 02:33:22,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:22,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444631617] [2022-07-13 02:33:22,951 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:22,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899856734] [2022-07-13 02:33:22,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899856734] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:33:22,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:33:22,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 32 [2022-07-13 02:33:22,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642421853] [2022-07-13 02:33:22,952 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:33:22,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-07-13 02:33:22,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:22,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-07-13 02:33:22,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-07-13 02:33:22,954 INFO L87 Difference]: Start difference. First operand 8559 states and 25120 transitions. Second operand has 32 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:25,134 INFO L93 Difference]: Finished difference Result 8610 states and 25152 transitions. [2022-07-13 02:33:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-07-13 02:33:25,135 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-07-13 02:33:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:25,153 INFO L225 Difference]: With dead ends: 8610 [2022-07-13 02:33:25,153 INFO L226 Difference]: Without dead ends: 8610 [2022-07-13 02:33:25,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-07-13 02:33:25,154 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 104 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:25,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 42 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-13 02:33:25,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8610 states. [2022-07-13 02:33:25,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8610 to 8583. [2022-07-13 02:33:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8583 states, 8177 states have (on average 3.0759447230035466) internal successors, (25152), 8582 states have internal predecessors, (25152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:25,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8583 states to 8583 states and 25152 transitions. [2022-07-13 02:33:25,301 INFO L78 Accepts]: Start accepts. Automaton has 8583 states and 25152 transitions. Word has length 53 [2022-07-13 02:33:25,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:25,302 INFO L495 AbstractCegarLoop]: Abstraction has 8583 states and 25152 transitions. [2022-07-13 02:33:25,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:25,302 INFO L276 IsEmpty]: Start isEmpty. Operand 8583 states and 25152 transitions. [2022-07-13 02:33:25,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 02:33:25,303 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:25,303 INFO L195 NwaCegarLoop]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:33:25,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:25,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-13 02:33:25,506 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:25,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:25,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1383573168, now seen corresponding path program 2 times [2022-07-13 02:33:25,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:25,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875848442] [2022-07-13 02:33:25,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:25,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:25,902 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:25,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73700322] [2022-07-13 02:33:25,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:33:25,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:25,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:25,904 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) [2022-07-13 02:33:25,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 02:33:27,687 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-13 02:33:27,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:33:27,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:33:27,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1894 trivial. 0 not checked. [2022-07-13 02:33:27,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:33:27,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:27,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875848442] [2022-07-13 02:33:27,712 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:27,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73700322] [2022-07-13 02:33:27,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73700322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:33:27,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:33:27,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:33:27,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214004771] [2022-07-13 02:33:27,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:33:27,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:33:27,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:27,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:33:27,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:33:27,714 INFO L87 Difference]: Start difference. First operand 8583 states and 25152 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:27,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:27,922 INFO L93 Difference]: Finished difference Result 8399 states and 24771 transitions. [2022-07-13 02:33:27,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:33:27,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-13 02:33:27,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:27,941 INFO L225 Difference]: With dead ends: 8399 [2022-07-13 02:33:27,942 INFO L226 Difference]: Without dead ends: 8399 [2022-07-13 02:33:27,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 02:33:27,942 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 29 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:27,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 28 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 02:33:27,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8399 states. [2022-07-13 02:33:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8399 to 8399. [2022-07-13 02:33:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8399 states, 8021 states have (on average 3.0882682957237253) internal successors, (24771), 8398 states have internal predecessors, (24771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8399 states to 8399 states and 24771 transitions. [2022-07-13 02:33:28,083 INFO L78 Accepts]: Start accepts. Automaton has 8399 states and 24771 transitions. Word has length 69 [2022-07-13 02:33:28,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:28,083 INFO L495 AbstractCegarLoop]: Abstraction has 8399 states and 24771 transitions. [2022-07-13 02:33:28,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:28,083 INFO L276 IsEmpty]: Start isEmpty. Operand 8399 states and 24771 transitions. [2022-07-13 02:33:28,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 02:33:28,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:28,084 INFO L195 NwaCegarLoop]: trace histogram [60, 2, 2, 1, 1, 1, 1, 1] [2022-07-13 02:33:28,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-07-13 02:33:28,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-13 02:33:28,286 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:28,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:28,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1383573214, now seen corresponding path program 1 times [2022-07-13 02:33:28,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:28,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799192116] [2022-07-13 02:33:28,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:28,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:28,792 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:28,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938067196] [2022-07-13 02:33:28,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:28,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:28,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:28,794 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) [2022-07-13 02:33:28,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 02:33:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:33:32,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 14216 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:33:32,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:33:32,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-13 02:33:32,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:33:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1894 backedges. 0 proven. 964 refuted. 0 times theorem prover too weak. 930 trivial. 0 not checked. [2022-07-13 02:33:32,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:33:32,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799192116] [2022-07-13 02:33:32,909 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-13 02:33:32,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938067196] [2022-07-13 02:33:32,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938067196] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:33:32,910 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:33:32,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-07-13 02:33:32,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264456271] [2022-07-13 02:33:32,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-13 02:33:32,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-13 02:33:32,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:33:32,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-13 02:33:32,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:33:32,913 INFO L87 Difference]: Start difference. First operand 8399 states and 24771 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:33,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:33:33,504 INFO L93 Difference]: Finished difference Result 8496 states and 24958 transitions. [2022-07-13 02:33:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 02:33:33,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-07-13 02:33:33,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:33:33,526 INFO L225 Difference]: With dead ends: 8496 [2022-07-13 02:33:33,527 INFO L226 Difference]: Without dead ends: 8496 [2022-07-13 02:33:33,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-07-13 02:33:33,527 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 18 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 02:33:33,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 56 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 02:33:33,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8496 states. [2022-07-13 02:33:33,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8496 to 8496. [2022-07-13 02:33:33,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8118 states have (on average 3.0744025622074402) internal successors, (24958), 8495 states have internal predecessors, (24958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:33,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 24958 transitions. [2022-07-13 02:33:33,710 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 24958 transitions. Word has length 69 [2022-07-13 02:33:33,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:33:33,711 INFO L495 AbstractCegarLoop]: Abstraction has 8496 states and 24958 transitions. [2022-07-13 02:33:33,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:33:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 24958 transitions. [2022-07-13 02:33:33,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-13 02:33:33,712 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:33:33,712 INFO L195 NwaCegarLoop]: trace histogram [62, 3, 2, 1, 1] [2022-07-13 02:33:33,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 02:33:33,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-13 02:33:33,914 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2022-07-13 02:33:33,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:33:33,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1388172874, now seen corresponding path program 4 times [2022-07-13 02:33:33,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:33:33,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188360603] [2022-07-13 02:33:33,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:33:33,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:33:34,388 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 02:33:34,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421462846] [2022-07-13 02:33:34,389 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 02:33:34,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:33:34,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:33:34,390 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) [2022-07-13 02:33:34,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process