./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array22_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/array22_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 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 21:45:01,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 21:45:01,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 21:45:01,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 21:45:01,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 21:45:01,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 21:45:01,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 21:45:01,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 21:45:01,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 21:45:01,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 21:45:01,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 21:45:01,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 21:45:01,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 21:45:01,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 21:45:01,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 21:45:01,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 21:45:01,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 21:45:01,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 21:45:01,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 21:45:01,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 21:45:01,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 21:45:01,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 21:45:01,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 21:45:01,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 21:45:01,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 21:45:01,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 21:45:01,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 21:45:01,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 21:45:01,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 21:45:01,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 21:45:01,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 21:45:01,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 21:45:01,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 21:45:01,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 21:45:01,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 21:45:01,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 21:45:01,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 21:45:01,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 21:45:01,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 21:45:01,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 21:45:01,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 21:45:01,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 21:45:01,380 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 21:45:01,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 21:45:01,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 21:45:01,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 21:45:01,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 21:45:01,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 21:45:01,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 21:45:01,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 21:45:01,384 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 21:45:01,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 21:45:01,384 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 21:45:01,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 21:45:01,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 21:45:01,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 21:45:01,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 21:45:01,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 21:45:01,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 21:45:01,385 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 21:45:01,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 21:45:01,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 21:45:01,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 21:45:01,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 21:45:01,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 21:45:01,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 21:45:01,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 21:45:01,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 21:45:01,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 21:45:01,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 21:45:01,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 21:45:01,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 21:45:01,388 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 21:45:01,389 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 21:45:01,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 21:45:01,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 21:45:01,389 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31d323b6985f030ac0fb5fda45d0cb8af14c3bb3898c8ff09cf5a292e40f357b [2021-12-15 21:45:01,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 21:45:01,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 21:45:01,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 21:45:01,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 21:45:01,583 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 21:45:01,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array22_pattern.c [2021-12-15 21:45:01,646 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827b672df/b3be11f9e4fc4e35b17de13e6ac956cd/FLAG6b7be7839 [2021-12-15 21:45:01,952 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 21:45:01,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array22_pattern.c [2021-12-15 21:45:01,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827b672df/b3be11f9e4fc4e35b17de13e6ac956cd/FLAG6b7be7839 [2021-12-15 21:45:02,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/827b672df/b3be11f9e4fc4e35b17de13e6ac956cd [2021-12-15 21:45:02,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 21:45:02,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 21:45:02,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 21:45:02,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 21:45:02,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 21:45:02,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e936b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02, skipping insertion in model container [2021-12-15 21:45:02,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 21:45:02,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 21:45:02,492 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/array22_pattern.c[1347,1360] [2021-12-15 21:45:02,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 21:45:02,512 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 21:45:02,522 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/array22_pattern.c[1347,1360] [2021-12-15 21:45:02,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 21:45:02,537 INFO L208 MainTranslator]: Completed translation [2021-12-15 21:45:02,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02 WrapperNode [2021-12-15 21:45:02,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 21:45:02,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 21:45:02,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 21:45:02,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 21:45:02,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,561 INFO L137 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2021-12-15 21:45:02,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 21:45:02,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 21:45:02,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 21:45:02,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 21:45:02,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 21:45:02,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 21:45:02,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 21:45:02,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 21:45:02,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (1/1) ... [2021-12-15 21:45:02,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 21:45:02,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:45:02,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 21:45:02,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 21:45:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2021-12-15 21:45:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2021-12-15 21:45:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 21:45:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 21:45:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 21:45:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 21:45:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 21:45:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 21:45:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 21:45:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 21:45:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 21:45:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 21:45:02,705 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 21:45:02,707 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 21:45:02,878 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 21:45:02,882 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 21:45:02,890 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-15 21:45:02,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:45:02 BoogieIcfgContainer [2021-12-15 21:45:02,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 21:45:02,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 21:45:02,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 21:45:02,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 21:45:02,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:45:02" (1/3) ... [2021-12-15 21:45:02,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487223d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:45:02, skipping insertion in model container [2021-12-15 21:45:02,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:45:02" (2/3) ... [2021-12-15 21:45:02,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487223d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:45:02, skipping insertion in model container [2021-12-15 21:45:02,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:45:02" (3/3) ... [2021-12-15 21:45:02,911 INFO L111 eAbstractionObserver]: Analyzing ICFG array22_pattern.c [2021-12-15 21:45:02,914 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 21:45:02,914 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 21:45:02,941 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 21:45:02,963 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 21:45:02,964 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 21:45:02,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 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) [2021-12-15 21:45:02,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 21:45:02,989 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:45:02,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:45:02,990 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:45:02,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:45:02,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1798908762, now seen corresponding path program 1 times [2021-12-15 21:45:03,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:45:03,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940630901] [2021-12-15 21:45:03,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:03,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:45:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:45:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-15 21:45:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:45:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 21:45:03,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:45:03,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940630901] [2021-12-15 21:45:03,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940630901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:45:03,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:45:03,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 21:45:03,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351704621] [2021-12-15 21:45:03,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:45:03,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 21:45:03,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:45:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 21:45:03,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 21:45:03,188 INFO L87 Difference]: Start difference. First operand has 41 states, 32 states have (on average 1.53125) internal successors, (49), 33 states have internal predecessors, (49), 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) 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) [2021-12-15 21:45:03,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:45:03,210 INFO L93 Difference]: Finished difference Result 79 states and 117 transitions. [2021-12-15 21:45:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 21:45:03,212 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 [2021-12-15 21:45:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:45:03,217 INFO L225 Difference]: With dead ends: 79 [2021-12-15 21:45:03,217 INFO L226 Difference]: Without dead ends: 37 [2021-12-15 21:45:03,220 INFO L932 BasicCegarLoop]: 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 [2021-12-15 21:45:03,226 INFO L933 BasicCegarLoop]: 51 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, 51 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 [2021-12-15 21:45:03,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:45:03,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-15 21:45:03,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-12-15 21:45:03,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 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) [2021-12-15 21:45:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2021-12-15 21:45:03,260 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 15 [2021-12-15 21:45:03,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:45:03,261 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2021-12-15 21:45:03,261 INFO L471 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) [2021-12-15 21:45:03,261 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2021-12-15 21:45:03,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-15 21:45:03,264 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:45:03,265 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:45:03,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 21:45:03,266 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:45:03,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:45:03,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1909329698, now seen corresponding path program 1 times [2021-12-15 21:45:03,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:45:03,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302121802] [2021-12-15 21:45:03,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:03,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:45:03,279 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 21:45:03,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [394887164] [2021-12-15 21:45:03,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:03,280 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:03,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:45:03,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 21:45:03,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 21:45:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:45:03,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-15 21:45:03,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:45:03,516 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-15 21:45:03,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 21:45:03,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:45:03,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302121802] [2021-12-15 21:45:03,517 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-15 21:45:03,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394887164] [2021-12-15 21:45:03,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394887164] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:45:03,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:45:03,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 21:45:03,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949079141] [2021-12-15 21:45:03,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:45:03,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 21:45:03,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:45:03,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 21:45:03,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 21:45:03,526 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-15 21:45:03,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:45:03,553 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2021-12-15 21:45:03,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 21:45:03,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2021-12-15 21:45:03,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:45:03,558 INFO L225 Difference]: With dead ends: 44 [2021-12-15 21:45:03,558 INFO L226 Difference]: Without dead ends: 40 [2021-12-15 21:45:03,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 21:45:03,559 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 12 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 110 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 [2021-12-15 21:45:03,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 110 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:45:03,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-12-15 21:45:03,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-12-15 21:45:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 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) [2021-12-15 21:45:03,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-12-15 21:45:03,575 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 42 [2021-12-15 21:45:03,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:45:03,576 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-12-15 21:45:03,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-15 21:45:03,577 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2021-12-15 21:45:03,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-15 21:45:03,579 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:45:03,579 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:45:03,598 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 21:45:03,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:03,784 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:45:03,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:45:03,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1786751912, now seen corresponding path program 1 times [2021-12-15 21:45:03,785 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:45:03,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670979796] [2021-12-15 21:45:03,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:03,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:45:03,796 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 21:45:03,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1133570991] [2021-12-15 21:45:03,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:03,800 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:03,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:45:03,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 21:45:03,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 21:45:03,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:45:03,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 21:45:03,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:45:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-15 21:45:04,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 21:45:04,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:45:04,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670979796] [2021-12-15 21:45:04,004 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-15 21:45:04,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133570991] [2021-12-15 21:45:04,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133570991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:45:04,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:45:04,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 21:45:04,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277722053] [2021-12-15 21:45:04,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:45:04,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 21:45:04,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:45:04,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 21:45:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-15 21:45:04,006 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-12-15 21:45:04,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:45:04,071 INFO L93 Difference]: Finished difference Result 83 states and 106 transitions. [2021-12-15 21:45:04,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 21:45:04,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 47 [2021-12-15 21:45:04,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:45:04,073 INFO L225 Difference]: With dead ends: 83 [2021-12-15 21:45:04,073 INFO L226 Difference]: Without dead ends: 50 [2021-12-15 21:45:04,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-15 21:45:04,074 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 25 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 21:45:04,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 128 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:45:04,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-15 21:45:04,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2021-12-15 21:45:04,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 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) [2021-12-15 21:45:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2021-12-15 21:45:04,078 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 47 [2021-12-15 21:45:04,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:45:04,079 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2021-12-15 21:45:04,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-12-15 21:45:04,079 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2021-12-15 21:45:04,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-15 21:45:04,080 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:45:04,080 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:45:04,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 21:45:04,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-15 21:45:04,296 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:45:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:45:04,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2075657686, now seen corresponding path program 1 times [2021-12-15 21:45:04,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:45:04,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322495158] [2021-12-15 21:45:04,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:04,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:45:04,316 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 21:45:04,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592682982] [2021-12-15 21:45:04,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:04,317 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:04,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:45:04,318 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 21:45:04,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 21:45:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:45:04,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-15 21:45:04,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:45:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-15 21:45:04,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 21:45:04,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:45:04,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322495158] [2021-12-15 21:45:04,495 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-15 21:45:04,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592682982] [2021-12-15 21:45:04,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592682982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 21:45:04,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 21:45:04,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 21:45:04,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685803928] [2021-12-15 21:45:04,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 21:45:04,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 21:45:04,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:45:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 21:45:04,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 21:45:04,498 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-12-15 21:45:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:45:04,542 INFO L93 Difference]: Finished difference Result 80 states and 103 transitions. [2021-12-15 21:45:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 21:45:04,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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 50 [2021-12-15 21:45:04,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:45:04,543 INFO L225 Difference]: With dead ends: 80 [2021-12-15 21:45:04,543 INFO L226 Difference]: Without dead ends: 44 [2021-12-15 21:45:04,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 21:45:04,544 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 28 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 21:45:04,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 77 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 21:45:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-15 21:45:04,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2021-12-15 21:45:04,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 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) [2021-12-15 21:45:04,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2021-12-15 21:45:04,548 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 50 [2021-12-15 21:45:04,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:45:04,549 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2021-12-15 21:45:04,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2021-12-15 21:45:04,549 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2021-12-15 21:45:04,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-15 21:45:04,550 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:45:04,550 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:45:04,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 21:45:04,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:04,767 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:45:04,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:45:04,767 INFO L85 PathProgramCache]: Analyzing trace with hash 874891816, now seen corresponding path program 1 times [2021-12-15 21:45:04,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:45:04,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686740055] [2021-12-15 21:45:04,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:04,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:45:04,775 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 21:45:04,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1968626087] [2021-12-15 21:45:04,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:04,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:04,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:45:04,777 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 21:45:04,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 21:45:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 21:45:04,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 21:45:04,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:45:04,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-15 21:45:04,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 21:45:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-15 21:45:05,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:45:05,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686740055] [2021-12-15 21:45:05,041 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-15 21:45:05,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1968626087] [2021-12-15 21:45:05,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1968626087] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 21:45:05,041 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-15 21:45:05,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-12-15 21:45:05,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987876285] [2021-12-15 21:45:05,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-15 21:45:05,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-15 21:45:05,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:45:05,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-15 21:45:05,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-15 21:45:05,043 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-15 21:45:05,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:45:05,156 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2021-12-15 21:45:05,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-15 21:45:05,156 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 52 [2021-12-15 21:45:05,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:45:05,157 INFO L225 Difference]: With dead ends: 87 [2021-12-15 21:45:05,157 INFO L226 Difference]: Without dead ends: 51 [2021-12-15 21:45:05,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2021-12-15 21:45:05,158 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 45 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 21:45:05,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 92 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 21:45:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-15 21:45:05,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2021-12-15 21:45:05,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-15 21:45:05,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2021-12-15 21:45:05,163 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 52 [2021-12-15 21:45:05,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:45:05,163 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2021-12-15 21:45:05,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-15 21:45:05,163 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2021-12-15 21:45:05,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-15 21:45:05,164 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:45:05,164 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:45:05,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 21:45:05,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:05,379 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:45:05,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:45:05,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1211966936, now seen corresponding path program 2 times [2021-12-15 21:45:05,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:45:05,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494476763] [2021-12-15 21:45:05,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:05,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:45:05,388 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 21:45:05,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704858100] [2021-12-15 21:45:05,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-15 21:45:05,389 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:05,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:45:05,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 21:45:05,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 21:45:05,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-15 21:45:05,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 21:45:05,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 21:45:05,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:45:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-15 21:45:05,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 21:45:05,626 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-15 21:45:05,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 21:45:05,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494476763] [2021-12-15 21:45:05,627 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-15 21:45:05,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704858100] [2021-12-15 21:45:05,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704858100] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 21:45:05,627 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-15 21:45:05,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-12-15 21:45:05,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054023768] [2021-12-15 21:45:05,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-15 21:45:05,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 21:45:05,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 21:45:05,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 21:45:05,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-15 21:45:05,629 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-15 21:45:05,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 21:45:05,770 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2021-12-15 21:45:05,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-15 21:45:05,770 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 56 [2021-12-15 21:45:05,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 21:45:05,771 INFO L225 Difference]: With dead ends: 108 [2021-12-15 21:45:05,771 INFO L226 Difference]: Without dead ends: 75 [2021-12-15 21:45:05,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-12-15 21:45:05,772 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 51 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 21:45:05,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 151 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 21:45:05,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-12-15 21:45:05,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 63. [2021-12-15 21:45:05,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.1851851851851851) internal successors, (64), 54 states have internal predecessors, (64), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-15 21:45:05,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2021-12-15 21:45:05,779 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 56 [2021-12-15 21:45:05,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 21:45:05,780 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2021-12-15 21:45:05,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-15 21:45:05,780 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2021-12-15 21:45:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-12-15 21:45:05,780 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 21:45:05,780 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 21:45:05,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-15 21:45:05,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:05,987 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 21:45:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 21:45:05,988 INFO L85 PathProgramCache]: Analyzing trace with hash -511912674, now seen corresponding path program 3 times [2021-12-15 21:45:05,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 21:45:05,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612495137] [2021-12-15 21:45:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 21:45:05,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 21:45:05,995 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 21:45:05,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1547908221] [2021-12-15 21:45:05,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-15 21:45:05,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 21:45:05,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 21:45:05,997 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 21:45:05,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-15 21:45:06,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-12-15 21:45:06,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 21:45:06,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 99 conjunts are in the unsatisfiable core [2021-12-15 21:45:06,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 21:45:06,973 INFO L388 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 60 treesize of output 55 [2021-12-15 21:45:06,986 INFO L388 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 19 treesize of output 18 [2021-12-15 21:45:06,993 INFO L388 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 21 treesize of output 20 [2021-12-15 21:45:07,074 INFO L388 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 73 treesize of output 66 [2021-12-15 21:45:07,099 INFO L354 Elim1Store]: treesize reduction 128, result has 19.5 percent of original size [2021-12-15 21:45:07,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 87 [2021-12-15 21:45:07,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 7 [2021-12-15 21:45:07,154 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-15 21:45:07,258 INFO L388 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 76 treesize of output 67 [2021-12-15 21:45:07,299 INFO L354 Elim1Store]: treesize reduction 174, result has 12.6 percent of original size [2021-12-15 21:45:07,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 66 treesize of output 88 [2021-12-15 21:45:07,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,316 INFO L354 Elim1Store]: treesize reduction 44, result has 2.2 percent of original size [2021-12-15 21:45:07,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 14 [2021-12-15 21:45:07,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,355 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-12-15 21:45:07,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 19 [2021-12-15 21:45:07,515 INFO L388 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 145 treesize of output 128 [2021-12-15 21:45:07,616 INFO L354 Elim1Store]: treesize reduction 604, result has 13.8 percent of original size [2021-12-15 21:45:07,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 127 treesize of output 185 [2021-12-15 21:45:07,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,642 INFO L354 Elim1Store]: treesize reduction 82, result has 1.2 percent of original size [2021-12-15 21:45:07,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 174 treesize of output 111 [2021-12-15 21:45:07,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:07,735 INFO L354 Elim1Store]: treesize reduction 42, result has 2.3 percent of original size [2021-12-15 21:45:07,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 123 treesize of output 66 [2021-12-15 21:45:14,442 INFO L388 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 113 treesize of output 100 [2021-12-15 21:45:14,639 INFO L354 Elim1Store]: treesize reduction 424, result has 33.8 percent of original size [2021-12-15 21:45:14,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 99 treesize of output 289 [2021-12-15 21:45:14,686 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-15 21:45:14,795 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-15 21:45:14,855 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-15 21:45:15,023 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-15 21:45:15,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:15,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:15,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:15,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:15,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:15,507 INFO L354 Elim1Store]: treesize reduction 54, result has 52.2 percent of original size [2021-12-15 21:45:15,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 122 treesize of output 136 [2021-12-15 21:45:56,247 INFO L388 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 426 treesize of output 385 [2021-12-15 21:45:58,104 INFO L354 Elim1Store]: treesize reduction 1485, result has 21.1 percent of original size [2021-12-15 21:45:58,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 4 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 30 case distinctions, treesize of input 388 treesize of output 652 [2021-12-15 21:45:58,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:58,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:58,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:58,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:58,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:58,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:58,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 40 [2021-12-15 21:45:58,889 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-15 21:45:58,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:58,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:58,918 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-15 21:45:58,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 55 [2021-12-15 21:45:59,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:59,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:59,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:59,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:59,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:59,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:59,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:59,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:59,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:45:59,391 INFO L244 Elim1Store]: Index analysis took 146 ms [2021-12-15 21:45:59,429 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-15 21:45:59,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 98 [2021-12-15 21:46:00,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:00,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:00,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:00,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:00,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:00,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:00,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:00,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:00,184 INFO L354 Elim1Store]: treesize reduction 37, result has 2.6 percent of original size [2021-12-15 21:46:00,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 376 treesize of output 280 [2021-12-15 21:46:02,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:02,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:02,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:02,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:02,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:02,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:02,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:02,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-15 21:46:02,505 INFO L354 Elim1Store]: treesize reduction 22, result has 42.1 percent of original size [2021-12-15 21:46:02,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 427 treesize of output 304