./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array17_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/array-patterns/array17_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1bbdbab39b20ef0f9bb51ea0fb71bf773586866898cf5babc34262381f9b9103 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-11 22:58:29,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-11 22:58:29,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-11 22:58:29,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-11 22:58:29,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-11 22:58:29,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-11 22:58:29,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-11 22:58:29,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-11 22:58:29,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-11 22:58:29,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-11 22:58:29,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-11 22:58:29,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-11 22:58:29,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-11 22:58:29,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-11 22:58:29,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-11 22:58:29,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-11 22:58:29,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-11 22:58:29,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-11 22:58:29,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-11 22:58:29,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-11 22:58:29,510 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-11 22:58:29,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-11 22:58:29,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-11 22:58:29,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-11 22:58:29,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-11 22:58:29,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-11 22:58:29,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-11 22:58:29,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-11 22:58:29,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-11 22:58:29,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-11 22:58:29,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-11 22:58:29,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-11 22:58:29,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-11 22:58:29,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-11 22:58:29,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-11 22:58:29,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-11 22:58:29,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-11 22:58:29,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-11 22:58:29,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-11 22:58:29,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-11 22:58:29,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-11 22:58:29,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-11 22:58:29,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-11 22:58:29,567 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-11 22:58:29,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-11 22:58:29,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-11 22:58:29,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-11 22:58:29,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-11 22:58:29,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-11 22:58:29,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-11 22:58:29,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-11 22:58:29,570 INFO L138 SettingsManager]: * Use SBE=true [2022-07-11 22:58:29,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-11 22:58:29,571 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-11 22:58:29,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-11 22:58:29,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-11 22:58:29,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-11 22:58:29,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-11 22:58:29,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-11 22:58:29,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-11 22:58:29,572 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-11 22:58:29,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-11 22:58:29,573 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-11 22:58:29,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-11 22:58:29,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-11 22:58:29,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-11 22:58:29,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-11 22:58:29,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-11 22:58:29,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-11 22:58:29,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-11 22:58:29,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-11 22:58:29,576 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-11 22:58:29,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-11 22:58:29,576 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-11 22:58:29,576 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-11 22:58:29,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-11 22:58:29,577 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bbdbab39b20ef0f9bb51ea0fb71bf773586866898cf5babc34262381f9b9103 [2022-07-11 22:58:29,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-11 22:58:29,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-11 22:58:29,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-11 22:58:29,860 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-11 22:58:29,861 INFO L275 PluginConnector]: CDTParser initialized [2022-07-11 22:58:29,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array17_pattern.c [2022-07-11 22:58:29,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8acbe3f/601ccaba053b4d0fbbb95b8c0c06ad9a/FLAG40185fc8b [2022-07-11 22:58:30,290 INFO L306 CDTParser]: Found 1 translation units. [2022-07-11 22:58:30,291 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array17_pattern.c [2022-07-11 22:58:30,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8acbe3f/601ccaba053b4d0fbbb95b8c0c06ad9a/FLAG40185fc8b [2022-07-11 22:58:30,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff8acbe3f/601ccaba053b4d0fbbb95b8c0c06ad9a [2022-07-11 22:58:30,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-11 22:58:30,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-11 22:58:30,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-11 22:58:30,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-11 22:58:30,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-11 22:58:30,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:30,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6520f7b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30, skipping insertion in model container [2022-07-11 22:58:30,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:30,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-11 22:58:30,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-11 22:58:30,889 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/array-patterns/array17_pattern.c[1441,1454] [2022-07-11 22:58:30,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-11 22:58:30,940 INFO L203 MainTranslator]: Completed pre-run [2022-07-11 22:58:30,950 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/array-patterns/array17_pattern.c[1441,1454] [2022-07-11 22:58:30,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-11 22:58:30,979 INFO L208 MainTranslator]: Completed translation [2022-07-11 22:58:30,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30 WrapperNode [2022-07-11 22:58:30,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-11 22:58:30,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-11 22:58:30,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-11 22:58:30,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-11 22:58:30,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:30,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:31,018 INFO L137 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2022-07-11 22:58:31,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-11 22:58:31,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-11 22:58:31,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-11 22:58:31,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-11 22:58:31,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:31,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:31,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:31,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:31,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:31,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:31,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:31,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-11 22:58:31,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-11 22:58:31,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-11 22:58:31,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-11 22:58:31,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (1/1) ... [2022-07-11 22:58:31,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-11 22:58:31,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:58:31,086 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) [2022-07-11 22:58:31,088 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 [2022-07-11 22:58:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-11 22:58:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-11 22:58:31,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-11 22:58:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-11 22:58:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-11 22:58:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-11 22:58:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-11 22:58:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-11 22:58:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-11 22:58:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-11 22:58:31,223 INFO L234 CfgBuilder]: Building ICFG [2022-07-11 22:58:31,228 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-11 22:58:31,425 INFO L275 CfgBuilder]: Performing block encoding [2022-07-11 22:58:31,431 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-11 22:58:31,431 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-11 22:58:31,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 10:58:31 BoogieIcfgContainer [2022-07-11 22:58:31,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-11 22:58:31,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-11 22:58:31,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-11 22:58:31,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-11 22:58:31,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 10:58:30" (1/3) ... [2022-07-11 22:58:31,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111c9d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 10:58:31, skipping insertion in model container [2022-07-11 22:58:31,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 10:58:30" (2/3) ... [2022-07-11 22:58:31,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111c9d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 10:58:31, skipping insertion in model container [2022-07-11 22:58:31,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 10:58:31" (3/3) ... [2022-07-11 22:58:31,442 INFO L111 eAbstractionObserver]: Analyzing ICFG array17_pattern.c [2022-07-11 22:58:31,456 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-11 22:58:31,457 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-11 22:58:31,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-11 22:58:31,506 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=PETRI_NET, 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@454f349f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e2b2910 [2022-07-11 22:58:31,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-11 22:58:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:58:31,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-11 22:58:31,518 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:58:31,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:58:31,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:58:31,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:58:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2132324569, now seen corresponding path program 1 times [2022-07-11 22:58:31,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:58:31,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485233018] [2022-07-11 22:58:31,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:58:31,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:58:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:58:31,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-11 22:58:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:58:31,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-11 22:58:31,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:58:31,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485233018] [2022-07-11 22:58:31,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485233018] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 22:58:31,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 22:58:31,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-11 22:58:31,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546875046] [2022-07-11 22:58:31,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 22:58:31,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-11 22:58:31,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:58:31,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-11 22:58:31,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-11 22:58:31,738 INFO L87 Difference]: Start difference. First operand has 33 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-11 22:58:31,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:58:31,779 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2022-07-11 22:58:31,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-11 22:58:31,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-07-11 22:58:31,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:58:31,787 INFO L225 Difference]: With dead ends: 63 [2022-07-11 22:58:31,787 INFO L226 Difference]: Without dead ends: 29 [2022-07-11 22:58:31,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-11 22:58:31,795 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:58:31,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:58:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-07-11 22:58:31,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-07-11 22:58:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:58:31,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2022-07-11 22:58:31,854 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 15 [2022-07-11 22:58:31,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:58:31,855 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2022-07-11 22:58:31,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-11 22:58:31,856 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2022-07-11 22:58:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-11 22:58:31,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:58:31,860 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:58:31,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-11 22:58:31,861 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:58:31,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:58:31,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1872922357, now seen corresponding path program 1 times [2022-07-11 22:58:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:58:31,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553358987] [2022-07-11 22:58:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:58:31,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:58:31,896 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-11 22:58:31,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799133714] [2022-07-11 22:58:31,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:58:31,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:58:31,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:58:31,907 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) [2022-07-11 22:58:31,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-11 22:58:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:58:32,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-11 22:58:32,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:58:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-11 22:58:32,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 22:58:32,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:58:32,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553358987] [2022-07-11 22:58:32,111 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-11 22:58:32,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799133714] [2022-07-11 22:58:32,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799133714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 22:58:32,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 22:58:32,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-11 22:58:32,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993803949] [2022-07-11 22:58:32,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 22:58:32,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-11 22:58:32,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:58:32,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-11 22:58:32,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-11 22:58:32,121 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:58:32,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:58:32,154 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2022-07-11 22:58:32,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-11 22:58:32,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-07-11 22:58:32,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:58:32,158 INFO L225 Difference]: With dead ends: 36 [2022-07-11 22:58:32,158 INFO L226 Difference]: Without dead ends: 32 [2022-07-11 22:58:32,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-11 22:58:32,161 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 12 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:58:32,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 84 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:58:32,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-11 22:58:32,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-07-11 22:58:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:58:32,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2022-07-11 22:58:32,179 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 30 [2022-07-11 22:58:32,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:58:32,180 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2022-07-11 22:58:32,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:58:32,181 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2022-07-11 22:58:32,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-11 22:58:32,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:58:32,183 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:58:32,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-11 22:58:32,397 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 [2022-07-11 22:58:32,398 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:58:32,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:58:32,398 INFO L85 PathProgramCache]: Analyzing trace with hash 212512359, now seen corresponding path program 1 times [2022-07-11 22:58:32,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:58:32,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760103976] [2022-07-11 22:58:32,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:58:32,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:58:32,413 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-11 22:58:32,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32600691] [2022-07-11 22:58:32,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:58:32,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:58:32,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:58:32,415 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) [2022-07-11 22:58:32,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-11 22:58:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:58:32,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-11 22:58:32,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:58:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-11 22:58:32,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 22:58:32,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:58:32,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760103976] [2022-07-11 22:58:32,530 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-11 22:58:32,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32600691] [2022-07-11 22:58:32,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32600691] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 22:58:32,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 22:58:32,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-11 22:58:32,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001852282] [2022-07-11 22:58:32,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 22:58:32,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-11 22:58:32,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:58:32,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-11 22:58:32,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-11 22:58:32,533 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:58:32,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:58:32,638 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2022-07-11 22:58:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-11 22:58:32,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-07-11 22:58:32,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:58:32,642 INFO L225 Difference]: With dead ends: 67 [2022-07-11 22:58:32,642 INFO L226 Difference]: Without dead ends: 42 [2022-07-11 22:58:32,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-11 22:58:32,646 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-11 22:58:32,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 86 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-11 22:58:32,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-07-11 22:58:32,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2022-07-11 22:58:32,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:58:32,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2022-07-11 22:58:32,666 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 35 [2022-07-11 22:58:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:58:32,666 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2022-07-11 22:58:32,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:58:32,668 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2022-07-11 22:58:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-11 22:58:32,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:58:32,670 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:58:32,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-11 22:58:32,891 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 [2022-07-11 22:58:32,892 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:58:32,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:58:32,892 INFO L85 PathProgramCache]: Analyzing trace with hash -654332553, now seen corresponding path program 1 times [2022-07-11 22:58:32,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:58:32,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387932704] [2022-07-11 22:58:32,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:58:32,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:58:32,916 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-11 22:58:32,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1571717463] [2022-07-11 22:58:32,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:58:32,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:58:32,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:58:32,918 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) [2022-07-11 22:58:32,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-11 22:58:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:58:32,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-11 22:58:32,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:58:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-07-11 22:58:32,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 22:58:32,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:58:32,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387932704] [2022-07-11 22:58:32,998 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-11 22:58:32,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571717463] [2022-07-11 22:58:32,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571717463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 22:58:32,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 22:58:32,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-11 22:58:32,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879136075] [2022-07-11 22:58:33,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 22:58:33,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-11 22:58:33,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:58:33,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-11 22:58:33,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-11 22:58:33,001 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:58:33,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:58:33,045 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2022-07-11 22:58:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-11 22:58:33,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2022-07-11 22:58:33,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:58:33,046 INFO L225 Difference]: With dead ends: 64 [2022-07-11 22:58:33,046 INFO L226 Difference]: Without dead ends: 36 [2022-07-11 22:58:33,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-11 22:58:33,048 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:58:33,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 53 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:58:33,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-11 22:58:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2022-07-11 22:58:33,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-11 22:58:33,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2022-07-11 22:58:33,054 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 38 [2022-07-11 22:58:33,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:58:33,054 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2022-07-11 22:58:33,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:58:33,054 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2022-07-11 22:58:33,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-11 22:58:33,055 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:58:33,056 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:58:33,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-11 22:58:33,279 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 [2022-07-11 22:58:33,280 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:58:33,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:58:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash 579061941, now seen corresponding path program 1 times [2022-07-11 22:58:33,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:58:33,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567998798] [2022-07-11 22:58:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:58:33,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:58:33,297 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-11 22:58:33,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [995557895] [2022-07-11 22:58:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:58:33,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:58:33,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:58:33,306 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) [2022-07-11 22:58:33,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-11 22:58:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:58:33,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 39 conjunts are in the unsatisfiable core [2022-07-11 22:58:33,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:58:33,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 40 [2022-07-11 22:58:33,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-07-11 22:58:33,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-07-11 22:58:34,056 INFO L356 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-07-11 22:58:34,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-07-11 22:58:34,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 170 [2022-07-11 22:58:34,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 727 [2022-07-11 22:58:34,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:58:34,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:58:34,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:58:34,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:58:34,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:58:34,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:58:34,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 336 treesize of output 699 [2022-07-11 22:58:34,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:58:34,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:58:34,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:58:34,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:58:34,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:58:34,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:58:34,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 547 treesize of output 1039 [2022-07-11 22:58:34,473 INFO L356 Elim1Store]: treesize reduction 23, result has 11.5 percent of original size [2022-07-11 22:58:34,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 27 [2022-07-11 22:58:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-11 22:58:34,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:58:41,892 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (<= (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |c_ULTIMATE.start_main_~index2~0#1|)) 4294967296) 2147483647))) (let ((.cse6 (<= (mod c_~ARR_SIZE~0 4294967296) 2147483647)) (.cse3 (not .cse0))) (and (or (and (or .cse0 (forall ((v_ArrVal_58 Int)) (let ((.cse1 (+ |c_ULTIMATE.start_main_~sum~0#1| (select (let ((.cse2 (* |c_ULTIMATE.start_main_~index1~0#1| (* (mod c_~ARR_SIZE~0 4294967296) 4)))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ .cse2 |c_ULTIMATE.start_main_~#array~0#1.offset| (* 4 |c_ULTIMATE.start_main_~index2~0#1|)) v_ArrVal_58) (+ .cse2 (- 17179869184) (* 4 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |c_ULTIMATE.start_main_~index2~0#1|)) 4294967296)) |c_ULTIMATE.start_main_~#array~0#1.offset|) (* (* (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) |c_ULTIMATE.start_main_~num~0#1|) |c_ULTIMATE.start_main_~num~0#1|))) |c_ULTIMATE.start_main_~#array~0#1.offset|)))) (or (= .cse1 1) (= .cse1 0))))) (or .cse3 (forall ((v_ArrVal_58 Int)) (let ((.cse4 (+ |c_ULTIMATE.start_main_~sum~0#1| (select (let ((.cse5 (* |c_ULTIMATE.start_main_~index1~0#1| (* (mod c_~ARR_SIZE~0 4294967296) 4)))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ .cse5 |c_ULTIMATE.start_main_~#array~0#1.offset| (* 4 |c_ULTIMATE.start_main_~index2~0#1|)) v_ArrVal_58) (+ .cse5 (* 4 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |c_ULTIMATE.start_main_~index2~0#1|)) 4294967296)) |c_ULTIMATE.start_main_~#array~0#1.offset|) (* (* (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) |c_ULTIMATE.start_main_~num~0#1|) |c_ULTIMATE.start_main_~num~0#1|))) |c_ULTIMATE.start_main_~#array~0#1.offset|)))) (or (= .cse4 1) (= .cse4 0)))))) (not .cse6)) (or .cse6 (and (or .cse3 (forall ((v_ArrVal_58 Int)) (let ((.cse7 (+ |c_ULTIMATE.start_main_~sum~0#1| (select (let ((.cse8 (* |c_ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) (* (mod c_~ARR_SIZE~0 4294967296) 4))))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ .cse8 |c_ULTIMATE.start_main_~#array~0#1.offset| (* 4 |c_ULTIMATE.start_main_~index2~0#1|)) v_ArrVal_58) (+ .cse8 (* 4 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |c_ULTIMATE.start_main_~index2~0#1|)) 4294967296)) |c_ULTIMATE.start_main_~#array~0#1.offset|) (* (* (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) |c_ULTIMATE.start_main_~num~0#1|) |c_ULTIMATE.start_main_~num~0#1|))) |c_ULTIMATE.start_main_~#array~0#1.offset|)))) (or (= .cse7 0) (= .cse7 1))))) (or (forall ((v_ArrVal_58 Int)) (let ((.cse9 (+ (select (let ((.cse10 (* |c_ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) (* (mod c_~ARR_SIZE~0 4294967296) 4))))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ .cse10 |c_ULTIMATE.start_main_~#array~0#1.offset| (* 4 |c_ULTIMATE.start_main_~index2~0#1|)) v_ArrVal_58) (+ (- 17179869184) .cse10 (* 4 (mod (+ c_~ARR_SIZE~0 4294967295 (* 4294967295 |c_ULTIMATE.start_main_~index2~0#1|)) 4294967296)) |c_ULTIMATE.start_main_~#array~0#1.offset|) (* (* (* |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) |c_ULTIMATE.start_main_~num~0#1|) |c_ULTIMATE.start_main_~num~0#1|))) |c_ULTIMATE.start_main_~#array~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|))) (or (= .cse9 0) (= .cse9 1)))) .cse0)))))) is different from true [2022-07-11 22:59:28,260 WARN L233 SmtUtils]: Spent 16.43s on a formula simplification that was a NOOP. DAG size: 84 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-11 22:59:28,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:59:28,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567998798] [2022-07-11 22:59:28,265 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-11 22:59:28,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995557895] [2022-07-11 22:59:28,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995557895] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-11 22:59:28,265 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-11 22:59:28,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2022-07-11 22:59:28,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703024602] [2022-07-11 22:59:28,266 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-11 22:59:28,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-11 22:59:28,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:59:28,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-11 22:59:28,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=594, Unknown=8, NotChecked=50, Total=756 [2022-07-11 22:59:28,267 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 19 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:59:31,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:59:31,226 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2022-07-11 22:59:31,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-11 22:59:31,226 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2022-07-11 22:59:31,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:59:31,227 INFO L225 Difference]: With dead ends: 97 [2022-07-11 22:59:31,227 INFO L226 Difference]: Without dead ends: 72 [2022-07-11 22:59:31,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 53.9s TimeCoverageRelationStatistics Valid=185, Invalid=1070, Unknown=9, NotChecked=68, Total=1332 [2022-07-11 22:59:31,229 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 30 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 233 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-11 22:59:31,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 276 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 171 Invalid, 0 Unknown, 233 Unchecked, 0.2s Time] [2022-07-11 22:59:31,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-07-11 22:59:31,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 56. [2022-07-11 22:59:31,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 48 states have (on average 1.25) internal successors, (60), 48 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-11 22:59:31,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2022-07-11 22:59:31,238 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 40 [2022-07-11 22:59:31,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:59:31,238 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2022-07-11 22:59:31,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-11 22:59:31,238 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2022-07-11 22:59:31,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-11 22:59:31,240 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:59:31,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:59:31,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-11 22:59:31,455 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 [2022-07-11 22:59:31,455 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:59:31,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:59:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash -700801737, now seen corresponding path program 1 times [2022-07-11 22:59:31,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:59:31,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977489749] [2022-07-11 22:59:31,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:59:31,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:59:31,471 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-11 22:59:31,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1012884021] [2022-07-11 22:59:31,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:59:31,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:59:31,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:59:31,476 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) [2022-07-11 22:59:31,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-11 22:59:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:59:31,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-11 22:59:31,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:59:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-11 22:59:31,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-11 22:59:31,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:59:31,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977489749] [2022-07-11 22:59:31,543 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-11 22:59:31,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012884021] [2022-07-11 22:59:31,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012884021] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-11 22:59:31,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-11 22:59:31,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-11 22:59:31,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224531048] [2022-07-11 22:59:31,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-11 22:59:31,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-11 22:59:31,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:59:31,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-11 22:59:31,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-11 22:59:31,546 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-11 22:59:31,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:59:31,572 INFO L93 Difference]: Finished difference Result 95 states and 117 transitions. [2022-07-11 22:59:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-11 22:59:31,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2022-07-11 22:59:31,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:59:31,573 INFO L225 Difference]: With dead ends: 95 [2022-07-11 22:59:31,573 INFO L226 Difference]: Without dead ends: 72 [2022-07-11 22:59:31,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-11 22:59:31,575 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 14 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-11 22:59:31,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 71 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-11 22:59:31,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-07-11 22:59:31,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 58. [2022-07-11 22:59:31,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 50 states have (on average 1.24) internal successors, (62), 50 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-11 22:59:31,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2022-07-11 22:59:31,583 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 40 [2022-07-11 22:59:31,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:59:31,584 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2022-07-11 22:59:31,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-11 22:59:31,584 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2022-07-11 22:59:31,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-07-11 22:59:31,585 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:59:31,585 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:59:31,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-11 22:59:31,796 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 [2022-07-11 22:59:31,796 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:59:31,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:59:31,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1287607751, now seen corresponding path program 1 times [2022-07-11 22:59:31,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:59:31,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455406043] [2022-07-11 22:59:31,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:59:31,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:59:31,807 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-11 22:59:31,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1602532203] [2022-07-11 22:59:31,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:59:31,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:59:31,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:59:31,809 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) [2022-07-11 22:59:31,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-11 22:59:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-11 22:59:31,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-11 22:59:31,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:59:32,030 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-11 22:59:32,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:59:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-11 22:59:32,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:59:32,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455406043] [2022-07-11 22:59:32,252 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-11 22:59:32,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602532203] [2022-07-11 22:59:32,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602532203] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-11 22:59:32,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-11 22:59:32,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 18 [2022-07-11 22:59:32,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964494482] [2022-07-11 22:59:32,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-11 22:59:32,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-11 22:59:32,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:59:32,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-11 22:59:32,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-07-11 22:59:32,257 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand has 18 states, 16 states have (on average 2.5625) internal successors, (41), 13 states have internal predecessors, (41), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-11 22:59:32,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:59:32,713 INFO L93 Difference]: Finished difference Result 167 states and 200 transitions. [2022-07-11 22:59:32,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-11 22:59:32,714 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.5625) internal successors, (41), 13 states have internal predecessors, (41), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 40 [2022-07-11 22:59:32,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:59:32,716 INFO L225 Difference]: With dead ends: 167 [2022-07-11 22:59:32,716 INFO L226 Difference]: Without dead ends: 142 [2022-07-11 22:59:32,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2022-07-11 22:59:32,717 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 140 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-11 22:59:32,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 173 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-11 22:59:32,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-07-11 22:59:32,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 90. [2022-07-11 22:59:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 77 states have internal predecessors, (91), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-11 22:59:32,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2022-07-11 22:59:32,740 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 40 [2022-07-11 22:59:32,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:59:32,741 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2022-07-11 22:59:32,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.5625) internal successors, (41), 13 states have internal predecessors, (41), 4 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-11 22:59:32,741 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2022-07-11 22:59:32,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-11 22:59:32,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:59:32,748 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:59:32,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-11 22:59:32,987 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 [2022-07-11 22:59:32,987 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:59:32,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:59:32,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1706965193, now seen corresponding path program 2 times [2022-07-11 22:59:32,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:59:32,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728446731] [2022-07-11 22:59:32,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:59:32,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:59:32,998 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-11 22:59:32,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108977337] [2022-07-11 22:59:32,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-11 22:59:32,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:59:32,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:59:33,000 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) [2022-07-11 22:59:33,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-11 22:59:33,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-11 22:59:33,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-11 22:59:33,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-11 22:59:33,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:59:33,116 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-11 22:59:33,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-11 22:59:33,169 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-11 22:59:33,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-11 22:59:33,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728446731] [2022-07-11 22:59:33,170 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-11 22:59:33,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108977337] [2022-07-11 22:59:33,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108977337] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-11 22:59:33,170 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-11 22:59:33,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-07-11 22:59:33,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947839945] [2022-07-11 22:59:33,170 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-11 22:59:33,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-11 22:59:33,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-11 22:59:33,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-11 22:59:33,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-11 22:59:33,172 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-11 22:59:33,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-11 22:59:33,329 INFO L93 Difference]: Finished difference Result 171 states and 204 transitions. [2022-07-11 22:59:33,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-11 22:59:33,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2022-07-11 22:59:33,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-11 22:59:33,331 INFO L225 Difference]: With dead ends: 171 [2022-07-11 22:59:33,331 INFO L226 Difference]: Without dead ends: 137 [2022-07-11 22:59:33,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-07-11 22:59:33,333 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 86 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-11 22:59:33,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 156 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-11 22:59:33,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-07-11 22:59:33,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2022-07-11 22:59:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 86 states have internal predecessors, (99), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-11 22:59:33,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2022-07-11 22:59:33,347 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 42 [2022-07-11 22:59:33,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-11 22:59:33,348 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2022-07-11 22:59:33,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-11 22:59:33,348 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2022-07-11 22:59:33,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-11 22:59:33,349 INFO L187 NwaCegarLoop]: Found error trace [2022-07-11 22:59:33,349 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-11 22:59:33,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-11 22:59:33,563 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 [2022-07-11 22:59:33,564 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-11 22:59:33,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-11 22:59:33,564 INFO L85 PathProgramCache]: Analyzing trace with hash 460196979, now seen corresponding path program 3 times [2022-07-11 22:59:33,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-11 22:59:33,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344825212] [2022-07-11 22:59:33,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-11 22:59:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-11 22:59:33,578 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-11 22:59:33,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829098536] [2022-07-11 22:59:33,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-11 22:59:33,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-11 22:59:33,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-11 22:59:33,580 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) [2022-07-11 22:59:33,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-11 22:59:33,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-07-11 22:59:33,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-11 22:59:33,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 30 conjunts are in the unsatisfiable core [2022-07-11 22:59:33,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-11 22:59:33,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 170 [2022-07-11 22:59:33,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 727 [2022-07-11 22:59:33,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:59:33,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:59:33,989 INFO L356 Elim1Store]: treesize reduction 87, result has 1.1 percent of original size [2022-07-11 22:59:33,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 204 treesize of output 181 [2022-07-11 22:59:34,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:59:34,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:59:34,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:59:34,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-11 22:59:34,094 INFO L356 Elim1Store]: treesize reduction 87, result has 1.1 percent of original size [2022-07-11 22:59:34,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 297 treesize of output 533 [2022-07-11 22:59:34,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:59:34,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-11 22:59:34,395 INFO L356 Elim1Store]: treesize reduction 254, result has 9.0 percent of original size [2022-07-11 22:59:34,395 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 522 treesize of output 528 [2022-07-11 22:59:57,779 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 118 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-11 22:59:59,956 WARN L833 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~row~0#1| 0) (let ((.cse0 (<= (mod c_~ARR_SIZE~0 4294967296) 2147483647))) (or (and .cse0 (or (exists ((|ULTIMATE.start_main_~index1~0#1| Int)) (let ((.cse1 (mod (+ c_~ARR_SIZE~0 4294967295 (* |ULTIMATE.start_main_~index1~0#1| 4294967295)) 4294967296))) (and (< |ULTIMATE.start_main_~index1~0#1| c_~ARR_SIZE~0) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (- 17179869184) (* 4 .cse1) (* |ULTIMATE.start_main_~index1~0#1| (* (mod c_~ARR_SIZE~0 4294967296) 4)) |c_ULTIMATE.start_main_~#array~0#1.offset|)) 1) (not (<= .cse1 2147483647)) (<= 0 |ULTIMATE.start_main_~index1~0#1|) (exists ((v_DerPreprocessor_15 Int) (v_DerPreprocessor_9 Int) (v_DerPreprocessor_16 Int)) (let ((.cse12 (* (mod c_~ARR_SIZE~0 4294967296) 4))) (let ((.cse6 (* 4 (mod (+ c_~ARR_SIZE~0 4294967295 (* |ULTIMATE.start_main_~index1~0#1| 4294967295)) 4294967296))) (.cse11 (* |ULTIMATE.start_main_~index1~0#1| .cse12))) (let ((.cse7 (* |ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) .cse12))) (.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|)) (.cse8 (+ (- 17179869184) .cse6 .cse11 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse10 (+ .cse6 .cse11 |c_ULTIMATE.start_main_~#array~0#1.offset|))) (let ((.cse3 (store (store (store .cse2 .cse10 v_DerPreprocessor_15) .cse8 v_DerPreprocessor_16) .cse10 v_DerPreprocessor_15)) (.cse4 (+ .cse6 .cse7 |c_ULTIMATE.start_main_~#array~0#1.offset|))) (let ((.cse9 (store .cse3 .cse4 1))) (and (= .cse2 (store (let ((.cse5 (+ (- 17179869184) .cse6 .cse7 |c_ULTIMATE.start_main_~#array~0#1.offset|))) (store (store .cse3 .cse4 v_DerPreprocessor_9) .cse5 (select .cse2 .cse5))) .cse8 (select .cse2 .cse8))) (= v_DerPreprocessor_16 (select .cse9 .cse8)) (= v_DerPreprocessor_15 (select .cse9 .cse10)))))))))))) (exists ((|ULTIMATE.start_main_~index1~0#1| Int)) (let ((.cse13 (mod (+ c_~ARR_SIZE~0 4294967295 (* |ULTIMATE.start_main_~index1~0#1| 4294967295)) 4294967296))) (and (< |ULTIMATE.start_main_~index1~0#1| c_~ARR_SIZE~0) (<= .cse13 2147483647) (<= 0 |ULTIMATE.start_main_~index1~0#1|) (exists ((v_DerPreprocessor_13 Int) (v_DerPreprocessor_11 Int) (v_DerPreprocessor_5 Int)) (let ((.cse24 (* (mod c_~ARR_SIZE~0 4294967296) 4))) (let ((.cse23 (* |ULTIMATE.start_main_~index1~0#1| .cse24)) (.cse21 (* 4 (mod (+ c_~ARR_SIZE~0 4294967295 (* |ULTIMATE.start_main_~index1~0#1| 4294967295)) 4294967296))) (.cse22 (* |ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) .cse24)))) (let ((.cse19 (+ (- 17179869184) .cse21 .cse22 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse17 (+ (- 17179869184) .cse21 .cse23 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse20 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|)) (.cse18 (+ .cse21 .cse23 |c_ULTIMATE.start_main_~#array~0#1.offset|))) (let ((.cse15 (store .cse20 .cse18 v_DerPreprocessor_13)) (.cse16 (+ .cse21 .cse22 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse14 (store (store (store .cse20 .cse18 v_DerPreprocessor_11) .cse19 v_DerPreprocessor_5) .cse17 1))) (and (= .cse14 (store (store .cse15 .cse16 (select .cse14 .cse16)) .cse17 1)) (= v_DerPreprocessor_13 (select (store .cse15 .cse16 1) .cse18)) (= v_DerPreprocessor_5 (select .cse14 .cse19)))))))) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (* 4 .cse13) (* |ULTIMATE.start_main_~index1~0#1| (* (mod c_~ARR_SIZE~0 4294967296) 4)) |c_ULTIMATE.start_main_~#array~0#1.offset|)) 1)))))) (and (not .cse0) (or (exists ((|ULTIMATE.start_main_~index1~0#1| Int)) (let ((.cse25 (mod (+ c_~ARR_SIZE~0 4294967295 (* |ULTIMATE.start_main_~index1~0#1| 4294967295)) 4294967296))) (and (< |ULTIMATE.start_main_~index1~0#1| c_~ARR_SIZE~0) (not (<= .cse25 2147483647)) (<= 0 |ULTIMATE.start_main_~index1~0#1|) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (- 17179869184) (* 4 .cse25) (* |ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) (* (mod c_~ARR_SIZE~0 4294967296) 4))) |c_ULTIMATE.start_main_~#array~0#1.offset|)) 1) (exists ((v_arrayElimCell_11 Int)) (= (let ((.cse28 (* (mod c_~ARR_SIZE~0 4294967296) 4))) (let ((.cse26 (* 4 (mod (+ c_~ARR_SIZE~0 4294967295 (* |ULTIMATE.start_main_~index1~0#1| 4294967295)) 4294967296))) (.cse27 (* |ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) .cse28)))) (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (- 17179869184) .cse26 .cse27 |c_ULTIMATE.start_main_~#array~0#1.offset|) v_arrayElimCell_11) (+ (- 17179869184) .cse26 (* |ULTIMATE.start_main_~index1~0#1| .cse28) |c_ULTIMATE.start_main_~#array~0#1.offset|) 1) (+ .cse26 .cse27 |c_ULTIMATE.start_main_~#array~0#1.offset|)))) 1))))) (exists ((|ULTIMATE.start_main_~index1~0#1| Int)) (let ((.cse29 (mod (+ c_~ARR_SIZE~0 4294967295 (* |ULTIMATE.start_main_~index1~0#1| 4294967295)) 4294967296))) (and (< |ULTIMATE.start_main_~index1~0#1| c_~ARR_SIZE~0) (not (<= .cse29 2147483647)) (<= 0 |ULTIMATE.start_main_~index1~0#1|) (not (= 17179869184 (* 17179869184 |ULTIMATE.start_main_~index1~0#1|))) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (- 17179869184) (* 4 .cse29) (* |ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) (* (mod c_~ARR_SIZE~0 4294967296) 4))) |c_ULTIMATE.start_main_~#array~0#1.offset|)) 1)))) (exists ((|ULTIMATE.start_main_~index1~0#1| Int)) (let ((.cse38 (mod (+ c_~ARR_SIZE~0 4294967295 (* |ULTIMATE.start_main_~index1~0#1| 4294967295)) 4294967296))) (and (exists ((v_DerPreprocessor_7 Int) (v_DerPreprocessor_3 Int)) (let ((.cse37 (* (mod c_~ARR_SIZE~0 4294967296) 4))) (let ((.cse34 (* 4 (mod (+ c_~ARR_SIZE~0 4294967295 (* |ULTIMATE.start_main_~index1~0#1| 4294967295)) 4294967296))) (.cse35 (* |ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) .cse37)))) (let ((.cse30 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|)) (.cse31 (+ .cse34 .cse35 |c_ULTIMATE.start_main_~#array~0#1.offset|)) (.cse36 (+ (- 17179869184) .cse34 (* |ULTIMATE.start_main_~index1~0#1| .cse37) |c_ULTIMATE.start_main_~#array~0#1.offset|))) (let ((.cse33 (store (store .cse30 .cse31 v_DerPreprocessor_3) .cse36 1))) (and (= (store (let ((.cse32 (+ (- 17179869184) .cse34 .cse35 |c_ULTIMATE.start_main_~#array~0#1.offset|))) (store (store .cse30 .cse31 v_DerPreprocessor_7) .cse32 (select .cse33 .cse32))) .cse36 1) .cse33) (= v_DerPreprocessor_3 (select .cse33 .cse31)))))))) (< |ULTIMATE.start_main_~index1~0#1| c_~ARR_SIZE~0) (<= .cse38 2147483647) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0#1.base|) (+ (* 4 .cse38) (* |ULTIMATE.start_main_~index1~0#1| (+ (- 17179869184) (* (mod c_~ARR_SIZE~0 4294967296) 4))) |c_ULTIMATE.start_main_~#array~0#1.offset|)) 1) (<= 0 |ULTIMATE.start_main_~index1~0#1|)))))))) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (< |c_ULTIMATE.start_main_~row~0#1| c_~ARR_SIZE~0) (= |c_ULTIMATE.start_main_~column~0#1| 0)) is different from false [2022-07-11 23:00:00,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1435 treesize of output 1389