./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array24_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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/array24_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 b41c571dabcbc4670dde65107f8da5b879f13435b678b4e9a9cdcc7ef0066cf6 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 11:30:17,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 11:30:17,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 11:30:17,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 11:30:17,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 11:30:17,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 11:30:17,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 11:30:17,543 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 11:30:17,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 11:30:17,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 11:30:17,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 11:30:17,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 11:30:17,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 11:30:17,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 11:30:17,550 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 11:30:17,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 11:30:17,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 11:30:17,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 11:30:17,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 11:30:17,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 11:30:17,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 11:30:17,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 11:30:17,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 11:30:17,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 11:30:17,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 11:30:17,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 11:30:17,573 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 11:30:17,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 11:30:17,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 11:30:17,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 11:30:17,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 11:30:17,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 11:30:17,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 11:30:17,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 11:30:17,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 11:30:17,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 11:30:17,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 11:30:17,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 11:30:17,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 11:30:17,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 11:30:17,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 11:30:17,585 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 11:30:17,613 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 11:30:17,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 11:30:17,615 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 11:30:17,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 11:30:17,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 11:30:17,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 11:30:17,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 11:30:17,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 11:30:17,618 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 11:30:17,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 11:30:17,619 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 11:30:17,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 11:30:17,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 11:30:17,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 11:30:17,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 11:30:17,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 11:30:17,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 11:30:17,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 11:30:17,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 11:30:17,621 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 11:30:17,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 11:30:17,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 11:30:17,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 11:30:17,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 11:30:17,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 11:30:17,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 11:30:17,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 11:30:17,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 11:30:17,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 11:30:17,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 11:30:17,623 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 11:30:17,623 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 11:30:17,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 11:30:17,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 11:30:17,624 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b41c571dabcbc4670dde65107f8da5b879f13435b678b4e9a9cdcc7ef0066cf6 [2021-12-14 11:30:17,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 11:30:17,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 11:30:17,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 11:30:17,895 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 11:30:17,898 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 11:30:17,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array24_pattern.c [2021-12-14 11:30:17,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f578683/cdf7840c51fb4b92bde1179fdad94169/FLAGdb9eb5220 [2021-12-14 11:30:18,309 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 11:30:18,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array24_pattern.c [2021-12-14 11:30:18,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f578683/cdf7840c51fb4b92bde1179fdad94169/FLAGdb9eb5220 [2021-12-14 11:30:18,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6f578683/cdf7840c51fb4b92bde1179fdad94169 [2021-12-14 11:30:18,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 11:30:18,334 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 11:30:18,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 11:30:18,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 11:30:18,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 11:30:18,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@735495b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18, skipping insertion in model container [2021-12-14 11:30:18,342 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 11:30:18,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 11:30:18,486 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/array24_pattern.c[1359,1372] [2021-12-14 11:30:18,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 11:30:18,517 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 11:30:18,537 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/array24_pattern.c[1359,1372] [2021-12-14 11:30:18,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 11:30:18,562 INFO L208 MainTranslator]: Completed translation [2021-12-14 11:30:18,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18 WrapperNode [2021-12-14 11:30:18,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 11:30:18,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 11:30:18,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 11:30:18,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 11:30:18,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,583 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,609 INFO L137 Inliner]: procedures = 17, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2021-12-14 11:30:18,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 11:30:18,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 11:30:18,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 11:30:18,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 11:30:18,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 11:30:18,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 11:30:18,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 11:30:18,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 11:30:18,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (1/1) ... [2021-12-14 11:30:18,646 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 11:30:18,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:18,670 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) [2021-12-14 11:30:18,675 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 [2021-12-14 11:30:18,699 INFO L130 BoogieDeclarations]: Found specification of procedure outerBoundaryPatternCheck [2021-12-14 11:30:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure outerBoundaryPatternCheck [2021-12-14 11:30:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 11:30:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 11:30:18,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 11:30:18,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 11:30:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 11:30:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 11:30:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 11:30:18,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 11:30:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 11:30:18,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 11:30:18,755 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 11:30:18,757 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 11:30:18,891 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 11:30:18,897 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 11:30:18,897 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-14 11:30:18,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:30:18 BoogieIcfgContainer [2021-12-14 11:30:18,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 11:30:18,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 11:30:18,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 11:30:18,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 11:30:18,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:30:18" (1/3) ... [2021-12-14 11:30:18,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83e31cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:30:18, skipping insertion in model container [2021-12-14 11:30:18,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:30:18" (2/3) ... [2021-12-14 11:30:18,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@83e31cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:30:18, skipping insertion in model container [2021-12-14 11:30:18,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:30:18" (3/3) ... [2021-12-14 11:30:18,906 INFO L111 eAbstractionObserver]: Analyzing ICFG array24_pattern.c [2021-12-14 11:30:18,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 11:30:18,911 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 11:30:18,951 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 11:30:18,957 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 [2021-12-14 11:30:18,957 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 11:30:18,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 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) [2021-12-14 11:30:18,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-14 11:30:18,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:18,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:30:18,986 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:18,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:19,003 INFO L85 PathProgramCache]: Analyzing trace with hash 2136211159, now seen corresponding path program 1 times [2021-12-14 11:30:19,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:19,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38489993] [2021-12-14 11:30:19,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:19,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:19,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 11:30:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:19,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 11:30:19,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:19,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38489993] [2021-12-14 11:30:19,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38489993] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:30:19,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:30:19,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 11:30:19,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534475871] [2021-12-14 11:30:19,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:30:19,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 11:30:19,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:19,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 11:30:19,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 11:30:19,229 INFO L87 Difference]: Start difference. First operand has 40 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 32 states have internal predecessors, (48), 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) [2021-12-14 11:30:19,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:19,248 INFO L93 Difference]: Finished difference Result 77 states and 115 transitions. [2021-12-14 11:30:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 11:30:19,251 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 [2021-12-14 11:30:19,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:19,256 INFO L225 Difference]: With dead ends: 77 [2021-12-14 11:30:19,256 INFO L226 Difference]: Without dead ends: 36 [2021-12-14 11:30:19,258 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 [2021-12-14 11:30:19,261 INFO L933 BasicCegarLoop]: 50 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, 50 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 [2021-12-14 11:30:19,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:30:19,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-12-14 11:30:19,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-12-14 11:30:19,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 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) [2021-12-14 11:30:19,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2021-12-14 11:30:19,301 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 15 [2021-12-14 11:30:19,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:19,301 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2021-12-14 11:30:19,302 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) [2021-12-14 11:30:19,303 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2021-12-14 11:30:19,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-12-14 11:30:19,308 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:19,308 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:30:19,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 11:30:19,309 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:19,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:19,314 INFO L85 PathProgramCache]: Analyzing trace with hash -699940082, now seen corresponding path program 1 times [2021-12-14 11:30:19,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:19,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384068372] [2021-12-14 11:30:19,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:19,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:19,340 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:19,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598253240] [2021-12-14 11:30:19,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:19,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:19,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:19,345 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) [2021-12-14 11:30:19,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 11:30:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:19,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 11:30:19,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-14 11:30:19,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:30:19,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:19,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384068372] [2021-12-14 11:30:19,617 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:19,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598253240] [2021-12-14 11:30:19,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598253240] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:30:19,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:30:19,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 11:30:19,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178183369] [2021-12-14 11:30:19,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:30:19,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 11:30:19,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:19,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 11:30:19,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:30:19,625 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-14 11:30:19,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:19,741 INFO L93 Difference]: Finished difference Result 76 states and 96 transitions. [2021-12-14 11:30:19,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 11:30:19,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2021-12-14 11:30:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:19,745 INFO L225 Difference]: With dead ends: 76 [2021-12-14 11:30:19,745 INFO L226 Difference]: Without dead ends: 48 [2021-12-14 11:30:19,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-12-14 11:30:19,750 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:19,755 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 92 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:30:19,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-12-14 11:30:19,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2021-12-14 11:30:19,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 33 states have internal predecessors, (41), 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) [2021-12-14 11:30:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2021-12-14 11:30:19,773 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 35 [2021-12-14 11:30:19,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:19,774 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2021-12-14 11:30:19,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-14 11:30:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2021-12-14 11:30:19,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-14 11:30:19,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:19,776 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:30:19,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:19,983 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 [2021-12-14 11:30:19,984 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:19,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1308831759, now seen corresponding path program 1 times [2021-12-14 11:30:19,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:19,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453293561] [2021-12-14 11:30:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:19,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:20,000 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:20,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1753450352] [2021-12-14 11:30:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:20,001 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:20,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:20,002 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) [2021-12-14 11:30:20,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 11:30:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:20,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 11:30:20,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-14 11:30:20,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:30:20,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:20,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453293561] [2021-12-14 11:30:20,161 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:20,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753450352] [2021-12-14 11:30:20,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753450352] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:30:20,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:30:20,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 11:30:20,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971759241] [2021-12-14 11:30:20,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:30:20,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 11:30:20,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:20,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 11:30:20,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 11:30:20,164 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-14 11:30:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:20,206 INFO L93 Difference]: Finished difference Result 79 states and 99 transitions. [2021-12-14 11:30:20,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 11:30:20,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2021-12-14 11:30:20,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:20,208 INFO L225 Difference]: With dead ends: 79 [2021-12-14 11:30:20,208 INFO L226 Difference]: Without dead ends: 46 [2021-12-14 11:30:20,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:30:20,209 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 27 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:20,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 76 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:30:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-12-14 11:30:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2021-12-14 11:30:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.2285714285714286) internal successors, (43), 35 states have internal predecessors, (43), 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) [2021-12-14 11:30:20,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2021-12-14 11:30:20,216 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 41 [2021-12-14 11:30:20,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:20,217 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2021-12-14 11:30:20,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-14 11:30:20,217 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2021-12-14 11:30:20,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-14 11:30:20,220 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:20,220 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:30:20,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:20,439 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 [2021-12-14 11:30:20,440 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:20,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:20,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1300942485, now seen corresponding path program 1 times [2021-12-14 11:30:20,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:20,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6913112] [2021-12-14 11:30:20,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:20,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:20,455 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:20,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1274195998] [2021-12-14 11:30:20,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:20,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:20,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:20,464 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) [2021-12-14 11:30:20,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 11:30:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:20,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-14 11:30:20,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-14 11:30:20,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:30:20,844 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-14 11:30:20,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:20,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6913112] [2021-12-14 11:30:20,845 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:20,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274195998] [2021-12-14 11:30:20,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274195998] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:30:20,845 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-14 11:30:20,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-12-14 11:30:20,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210373839] [2021-12-14 11:30:20,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-14 11:30:20,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-14 11:30:20,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:20,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-14 11:30:20,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-12-14 11:30:20,848 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 11:30:21,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:21,082 INFO L93 Difference]: Finished difference Result 85 states and 105 transitions. [2021-12-14 11:30:21,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 11:30:21,083 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2021-12-14 11:30:21,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:21,085 INFO L225 Difference]: With dead ends: 85 [2021-12-14 11:30:21,085 INFO L226 Difference]: Without dead ends: 50 [2021-12-14 11:30:21,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2021-12-14 11:30:21,089 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 104 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:21,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 151 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 11:30:21,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-12-14 11:30:21,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2021-12-14 11:30:21,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.205128205128205) internal successors, (47), 39 states have internal predecessors, (47), 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) [2021-12-14 11:30:21,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2021-12-14 11:30:21,106 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 45 [2021-12-14 11:30:21,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:21,107 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2021-12-14 11:30:21,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-14 11:30:21,107 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2021-12-14 11:30:21,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-14 11:30:21,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:21,110 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-14 11:30:21,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:21,323 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 [2021-12-14 11:30:21,324 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:21,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:21,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1544610617, now seen corresponding path program 2 times [2021-12-14 11:30:21,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:21,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631843023] [2021-12-14 11:30:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:21,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:21,335 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:21,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819040865] [2021-12-14 11:30:21,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 11:30:21,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:21,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:21,337 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) [2021-12-14 11:30:21,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 11:30:21,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 11:30:21,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 11:30:21,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 11:30:21,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:21,535 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-14 11:30:21,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:30:21,628 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-14 11:30:21,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:21,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631843023] [2021-12-14 11:30:21,629 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:21,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819040865] [2021-12-14 11:30:21,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819040865] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:30:21,629 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-14 11:30:21,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2021-12-14 11:30:21,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861751163] [2021-12-14 11:30:21,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-14 11:30:21,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 11:30:21,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:21,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 11:30:21,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-12-14 11:30:21,631 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:21,811 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2021-12-14 11:30:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 11:30:21,811 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2021-12-14 11:30:21,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:21,814 INFO L225 Difference]: With dead ends: 106 [2021-12-14 11:30:21,815 INFO L226 Difference]: Without dead ends: 74 [2021-12-14 11:30:21,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-12-14 11:30:21,816 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 50 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:21,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 198 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:30:21,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-12-14 11:30:21,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 62. [2021-12-14 11:30:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 53 states have internal predecessors, (63), 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) [2021-12-14 11:30:21,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2021-12-14 11:30:21,827 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 49 [2021-12-14 11:30:21,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:21,827 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2021-12-14 11:30:21,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.2727272727272725) internal successors, (47), 11 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:21,827 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2021-12-14 11:30:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 11:30:21,833 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:21,833 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2021-12-14 11:30:21,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-14 11:30:22,035 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 [2021-12-14 11:30:22,036 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:22,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:22,036 INFO L85 PathProgramCache]: Analyzing trace with hash -725408594, now seen corresponding path program 3 times [2021-12-14 11:30:22,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:22,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452154852] [2021-12-14 11:30:22,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:22,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:22,054 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:22,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850213941] [2021-12-14 11:30:22,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 11:30:22,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:22,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:22,058 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) [2021-12-14 11:30:22,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 11:30:24,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-12-14 11:30:24,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 11:30:24,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 88 conjunts are in the unsatisfiable core [2021-12-14 11:30:24,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:24,612 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 [2021-12-14 11:30:24,622 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-14 11:30:24,629 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 [2021-12-14 11:30:24,733 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 71 treesize of output 64 [2021-12-14 11:30:24,760 INFO L354 Elim1Store]: treesize reduction 116, result has 18.9 percent of original size [2021-12-14 11:30:24,760 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 63 treesize of output 83 [2021-12-14 11:30:24,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:24,792 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 40 treesize of output 17 [2021-12-14 11:30:24,960 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 [2021-12-14 11:30:25,000 INFO L354 Elim1Store]: treesize reduction 174, result has 12.6 percent of original size [2021-12-14 11:30:25,000 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 [2021-12-14 11:30:25,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:25,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:25,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:25,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 19 [2021-12-14 11:30:25,167 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 95 treesize of output 84 [2021-12-14 11:30:25,225 INFO L354 Elim1Store]: treesize reduction 364, result has 13.9 percent of original size [2021-12-14 11:30:25,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 83 treesize of output 125 [2021-12-14 11:30:25,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:25,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:25,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:25,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:25,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:25,291 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 90 treesize of output 39 [2021-12-14 11:30:26,655 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 133 treesize of output 116 [2021-12-14 11:30:26,820 INFO L354 Elim1Store]: treesize reduction 667, result has 9.6 percent of original size [2021-12-14 11:30:26,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 115 treesize of output 140 [2021-12-14 11:30:26,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:26,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:26,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:26,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:26,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:26,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:26,877 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 74 treesize of output 40 [2021-12-14 11:30:27,791 INFO L354 Elim1Store]: treesize reduction 380, result has 20.0 percent of original size [2021-12-14 11:30:27,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 131 treesize of output 130 [2021-12-14 11:30:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 8 proven. 53 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 11:30:28,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:30:40,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:40,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452154852] [2021-12-14 11:30:40,417 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:40,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850213941] [2021-12-14 11:30:40,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850213941] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 11:30:40,417 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-14 11:30:40,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2021-12-14 11:30:40,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065621314] [2021-12-14 11:30:40,417 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-14 11:30:40,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-12-14 11:30:40,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:40,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-12-14 11:30:40,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=2651, Unknown=7, NotChecked=0, Total=3192 [2021-12-14 11:30:40,420 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 39 states have internal predecessors, (55), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-14 11:30:42,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:42,447 INFO L93 Difference]: Finished difference Result 154 states and 186 transitions. [2021-12-14 11:30:42,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-14 11:30:42,452 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 1.375) internal successors, (55), 39 states have internal predecessors, (55), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 63 [2021-12-14 11:30:42,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:42,455 INFO L225 Difference]: With dead ends: 154 [2021-12-14 11:30:42,455 INFO L226 Difference]: Without dead ends: 148 [2021-12-14 11:30:42,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 26 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2012 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=819, Invalid=4004, Unknown=7, NotChecked=0, Total=4830 [2021-12-14 11:30:42,457 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 108 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 1205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 290 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:42,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 428 Invalid, 1205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 775 Invalid, 0 Unknown, 290 Unchecked, 1.0s Time] [2021-12-14 11:30:42,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-12-14 11:30:42,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 112. [2021-12-14 11:30:42,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 98 states have (on average 1.2040816326530612) internal successors, (118), 98 states have internal predecessors, (118), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-12-14 11:30:42,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2021-12-14 11:30:42,470 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 63 [2021-12-14 11:30:42,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:42,471 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2021-12-14 11:30:42,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 1.375) internal successors, (55), 39 states have internal predecessors, (55), 3 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-14 11:30:42,471 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2021-12-14 11:30:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 11:30:42,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:42,472 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2021-12-14 11:30:42,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:42,679 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 [2021-12-14 11:30:42,680 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:42,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:42,680 INFO L85 PathProgramCache]: Analyzing trace with hash -506553876, now seen corresponding path program 1 times [2021-12-14 11:30:42,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:42,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096955571] [2021-12-14 11:30:42,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:42,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:42,689 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:42,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747445625] [2021-12-14 11:30:42,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:42,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:42,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:42,693 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) [2021-12-14 11:30:42,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 11:30:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:42,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 11:30:42,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-12-14 11:30:42,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:30:42,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:42,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096955571] [2021-12-14 11:30:42,845 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:42,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747445625] [2021-12-14 11:30:42,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747445625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:30:42,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:30:42,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 11:30:42,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539375639] [2021-12-14 11:30:42,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:30:42,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 11:30:42,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:42,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 11:30:42,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:30:42,848 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-14 11:30:42,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:42,864 INFO L93 Difference]: Finished difference Result 153 states and 185 transitions. [2021-12-14 11:30:42,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 11:30:42,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2021-12-14 11:30:42,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:42,867 INFO L225 Difference]: With dead ends: 153 [2021-12-14 11:30:42,868 INFO L226 Difference]: Without dead ends: 114 [2021-12-14 11:30:42,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 11:30:42,871 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:42,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 83 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:30:42,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-12-14 11:30:42,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2021-12-14 11:30:42,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 99 states have (on average 1.1919191919191918) internal successors, (118), 99 states have internal predecessors, (118), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2021-12-14 11:30:42,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 135 transitions. [2021-12-14 11:30:42,898 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 135 transitions. Word has length 63 [2021-12-14 11:30:42,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:42,899 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 135 transitions. [2021-12-14 11:30:42,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-14 11:30:42,899 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 135 transitions. [2021-12-14 11:30:42,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-14 11:30:42,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:42,900 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2021-12-14 11:30:42,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:43,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:43,100 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:43,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:43,101 INFO L85 PathProgramCache]: Analyzing trace with hash 236205423, now seen corresponding path program 1 times [2021-12-14 11:30:43,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:43,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222534314] [2021-12-14 11:30:43,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:43,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:43,110 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:43,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [224608089] [2021-12-14 11:30:43,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:43,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:43,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:43,114 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:30:43,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 11:30:43,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:43,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 11:30:43,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-12-14 11:30:43,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:30:43,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:43,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222534314] [2021-12-14 11:30:43,259 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:43,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224608089] [2021-12-14 11:30:43,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224608089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:30:43,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:30:43,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 11:30:43,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210361762] [2021-12-14 11:30:43,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:30:43,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 11:30:43,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:43,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 11:30:43,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:30:43,261 INFO L87 Difference]: Start difference. First operand 113 states and 135 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-14 11:30:43,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:43,288 INFO L93 Difference]: Finished difference Result 163 states and 198 transitions. [2021-12-14 11:30:43,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 11:30:43,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2021-12-14 11:30:43,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:43,290 INFO L225 Difference]: With dead ends: 163 [2021-12-14 11:30:43,290 INFO L226 Difference]: Without dead ends: 123 [2021-12-14 11:30:43,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:30:43,291 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 5 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:43,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 193 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:30:43,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-12-14 11:30:43,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 117. [2021-12-14 11:30:43,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 102 states have (on average 1.1862745098039216) internal successors, (121), 102 states have internal predecessors, (121), 8 states have call successors, (8), 5 states have call predecessors, (8), 6 states have return successors, (11), 9 states have call predecessors, (11), 8 states have call successors, (11) [2021-12-14 11:30:43,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 140 transitions. [2021-12-14 11:30:43,302 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 140 transitions. Word has length 63 [2021-12-14 11:30:43,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:43,303 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 140 transitions. [2021-12-14 11:30:43,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-14 11:30:43,303 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 140 transitions. [2021-12-14 11:30:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 11:30:43,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:43,304 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 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] [2021-12-14 11:30:43,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:43,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:43,512 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:43,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:43,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1172698608, now seen corresponding path program 4 times [2021-12-14 11:30:43,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:43,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613112161] [2021-12-14 11:30:43,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:43,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:43,521 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:43,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1801276424] [2021-12-14 11:30:43,528 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 11:30:43,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:43,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:43,529 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:30:43,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-14 11:30:43,595 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 11:30:43,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 11:30:43,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 11:30:43,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-14 11:30:43,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:30:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 19 proven. 30 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-14 11:30:43,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:43,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613112161] [2021-12-14 11:30:43,906 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:43,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801276424] [2021-12-14 11:30:43,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801276424] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:30:43,907 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-14 11:30:43,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-12-14 11:30:43,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800437367] [2021-12-14 11:30:43,909 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-14 11:30:43,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 11:30:43,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:43,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 11:30:43,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-14 11:30:43,911 INFO L87 Difference]: Start difference. First operand 117 states and 140 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:44,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:44,109 INFO L93 Difference]: Finished difference Result 322 states and 399 transitions. [2021-12-14 11:30:44,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 11:30:44,110 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2021-12-14 11:30:44,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:44,111 INFO L225 Difference]: With dead ends: 322 [2021-12-14 11:30:44,111 INFO L226 Difference]: Without dead ends: 226 [2021-12-14 11:30:44,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-12-14 11:30:44,112 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 178 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:44,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 136 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:30:44,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-12-14 11:30:44,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 168. [2021-12-14 11:30:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 146 states have (on average 1.1712328767123288) internal successors, (171), 146 states have internal predecessors, (171), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2021-12-14 11:30:44,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 200 transitions. [2021-12-14 11:30:44,136 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 200 transitions. Word has length 65 [2021-12-14 11:30:44,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:44,138 INFO L470 AbstractCegarLoop]: Abstraction has 168 states and 200 transitions. [2021-12-14 11:30:44,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:44,138 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 200 transitions. [2021-12-14 11:30:44,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-14 11:30:44,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:44,141 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 4, 3, 3, 3, 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] [2021-12-14 11:30:44,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:44,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-14 11:30:44,365 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:44,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:44,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2109828498, now seen corresponding path program 5 times [2021-12-14 11:30:44,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:44,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14771318] [2021-12-14 11:30:44,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:44,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:44,373 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:44,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [730812841] [2021-12-14 11:30:44,374 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-14 11:30:44,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:44,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:44,375 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:30:44,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-14 11:30:44,495 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-12-14 11:30:44,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 11:30:44,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 11:30:44,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:44,649 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 12 proven. 34 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 11:30:44,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:30:44,796 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-14 11:30:44,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:44,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14771318] [2021-12-14 11:30:44,797 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:44,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730812841] [2021-12-14 11:30:44,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730812841] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:30:44,797 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-14 11:30:44,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-12-14 11:30:44,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202058851] [2021-12-14 11:30:44,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-14 11:30:44,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-14 11:30:44,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:44,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-14 11:30:44,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-12-14 11:30:44,799 INFO L87 Difference]: Start difference. First operand 168 states and 200 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:45,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:45,165 INFO L93 Difference]: Finished difference Result 354 states and 421 transitions. [2021-12-14 11:30:45,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-14 11:30:45,166 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2021-12-14 11:30:45,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:45,167 INFO L225 Difference]: With dead ends: 354 [2021-12-14 11:30:45,167 INFO L226 Difference]: Without dead ends: 234 [2021-12-14 11:30:45,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2021-12-14 11:30:45,169 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 85 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:45,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 157 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 11:30:45,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-12-14 11:30:45,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 181. [2021-12-14 11:30:45,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 159 states have (on average 1.1761006289308176) internal successors, (187), 159 states have internal predecessors, (187), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2021-12-14 11:30:45,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 216 transitions. [2021-12-14 11:30:45,182 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 216 transitions. Word has length 67 [2021-12-14 11:30:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:45,182 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 216 transitions. [2021-12-14 11:30:45,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:45,183 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 216 transitions. [2021-12-14 11:30:45,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 11:30:45,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:45,184 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] [2021-12-14 11:30:45,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:45,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-14 11:30:45,401 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:45,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:45,402 INFO L85 PathProgramCache]: Analyzing trace with hash -834557719, now seen corresponding path program 1 times [2021-12-14 11:30:45,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:45,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221941152] [2021-12-14 11:30:45,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:45,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:45,409 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:45,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945731778] [2021-12-14 11:30:45,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:45,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:45,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:45,410 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:30:45,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-14 11:30:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:45,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 11:30:45,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:45,556 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-12-14 11:30:45,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 11:30:45,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:45,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221941152] [2021-12-14 11:30:45,557 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:45,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945731778] [2021-12-14 11:30:45,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945731778] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 11:30:45,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 11:30:45,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 11:30:45,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289924396] [2021-12-14 11:30:45,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 11:30:45,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 11:30:45,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:45,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 11:30:45,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 11:30:45,559 INFO L87 Difference]: Start difference. First operand 181 states and 216 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 11:30:45,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:45,588 INFO L93 Difference]: Finished difference Result 282 states and 338 transitions. [2021-12-14 11:30:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 11:30:45,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 69 [2021-12-14 11:30:45,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:45,590 INFO L225 Difference]: With dead ends: 282 [2021-12-14 11:30:45,590 INFO L226 Difference]: Without dead ends: 185 [2021-12-14 11:30:45,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 11:30:45,591 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 5 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:45,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 164 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 11:30:45,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-12-14 11:30:45,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 181. [2021-12-14 11:30:45,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 159 states have (on average 1.1572327044025157) internal successors, (184), 159 states have internal predecessors, (184), 12 states have call successors, (12), 7 states have call predecessors, (12), 9 states have return successors, (17), 14 states have call predecessors, (17), 12 states have call successors, (17) [2021-12-14 11:30:45,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 213 transitions. [2021-12-14 11:30:45,633 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 213 transitions. Word has length 69 [2021-12-14 11:30:45,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:45,633 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 213 transitions. [2021-12-14 11:30:45,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 11:30:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 213 transitions. [2021-12-14 11:30:45,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-14 11:30:45,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:45,634 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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, 1] [2021-12-14 11:30:45,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:45,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-14 11:30:45,859 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:45,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:45,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1276732650, now seen corresponding path program 1 times [2021-12-14 11:30:45,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:45,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902372556] [2021-12-14 11:30:45,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:45,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:45,868 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:45,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781112165] [2021-12-14 11:30:45,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:45,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:45,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:45,870 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:30:45,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-14 11:30:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:45,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-14 11:30:45,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:46,157 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 15 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-12-14 11:30:46,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:30:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 11:30:46,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:46,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902372556] [2021-12-14 11:30:46,440 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:46,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781112165] [2021-12-14 11:30:46,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781112165] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:30:46,440 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-14 11:30:46,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 17 [2021-12-14 11:30:46,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422867031] [2021-12-14 11:30:46,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-14 11:30:46,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-14 11:30:46,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:46,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-14 11:30:46,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2021-12-14 11:30:46,443 INFO L87 Difference]: Start difference. First operand 181 states and 213 transitions. Second operand has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2021-12-14 11:30:46,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:46,858 INFO L93 Difference]: Finished difference Result 255 states and 289 transitions. [2021-12-14 11:30:46,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-14 11:30:46,859 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 69 [2021-12-14 11:30:46,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:46,861 INFO L225 Difference]: With dead ends: 255 [2021-12-14 11:30:46,861 INFO L226 Difference]: Without dead ends: 209 [2021-12-14 11:30:46,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2021-12-14 11:30:46,862 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 70 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:46,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 324 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 11:30:46,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-12-14 11:30:46,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 186. [2021-12-14 11:30:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 162 states have (on average 1.1358024691358024) internal successors, (184), 164 states have internal predecessors, (184), 13 states have call successors, (13), 9 states have call predecessors, (13), 10 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2021-12-14 11:30:46,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 212 transitions. [2021-12-14 11:30:46,875 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 212 transitions. Word has length 69 [2021-12-14 11:30:46,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:46,875 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 212 transitions. [2021-12-14 11:30:46,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.7333333333333334) internal successors, (56), 15 states have internal predecessors, (56), 5 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2021-12-14 11:30:46,876 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 212 transitions. [2021-12-14 11:30:46,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-14 11:30:46,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:46,877 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 3, 3, 3, 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] [2021-12-14 11:30:46,895 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-12-14 11:30:47,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-14 11:30:47,087 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:47,088 INFO L85 PathProgramCache]: Analyzing trace with hash -698104178, now seen corresponding path program 6 times [2021-12-14 11:30:47,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:47,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543138334] [2021-12-14 11:30:47,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:47,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:47,096 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:47,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998359536] [2021-12-14 11:30:47,098 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-14 11:30:47,099 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:47,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:47,100 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:30:47,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-14 11:30:47,496 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-12-14 11:30:47,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 11:30:47,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 11:30:47,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:47,652 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 77 proven. 22 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-14 11:30:47,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:30:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 56 proven. 35 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-14 11:30:47,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:47,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543138334] [2021-12-14 11:30:47,797 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:47,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998359536] [2021-12-14 11:30:47,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998359536] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:30:47,797 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-14 11:30:47,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-12-14 11:30:47,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78746671] [2021-12-14 11:30:47,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-14 11:30:47,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 11:30:47,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:47,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 11:30:47,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-14 11:30:47,800 INFO L87 Difference]: Start difference. First operand 186 states and 212 transitions. Second operand has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:47,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:47,980 INFO L93 Difference]: Finished difference Result 261 states and 289 transitions. [2021-12-14 11:30:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 11:30:47,981 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2021-12-14 11:30:47,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:47,982 INFO L225 Difference]: With dead ends: 261 [2021-12-14 11:30:47,982 INFO L226 Difference]: Without dead ends: 164 [2021-12-14 11:30:47,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-12-14 11:30:47,985 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 46 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:47,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 219 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:30:47,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-12-14 11:30:47,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 155. [2021-12-14 11:30:47,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 138 states have (on average 1.108695652173913) internal successors, (153), 139 states have internal predecessors, (153), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2021-12-14 11:30:47,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 173 transitions. [2021-12-14 11:30:47,996 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 173 transitions. Word has length 74 [2021-12-14 11:30:47,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:47,996 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 173 transitions. [2021-12-14 11:30:47,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:47,996 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 173 transitions. [2021-12-14 11:30:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-14 11:30:47,997 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:47,997 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 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] [2021-12-14 11:30:48,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-14 11:30:48,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-14 11:30:48,222 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:48,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:48,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1833960014, now seen corresponding path program 7 times [2021-12-14 11:30:48,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:48,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539932199] [2021-12-14 11:30:48,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:48,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:48,232 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:48,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2124975881] [2021-12-14 11:30:48,233 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-14 11:30:48,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:48,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:48,234 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:30:48,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-14 11:30:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 11:30:48,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 11:30:48,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:48,469 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 89 proven. 17 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-14 11:30:48,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 11:30:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 81 proven. 17 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-14 11:30:48,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 11:30:48,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539932199] [2021-12-14 11:30:48,604 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 11:30:48,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124975881] [2021-12-14 11:30:48,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124975881] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 11:30:48,604 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-14 11:30:48,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-12-14 11:30:48,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742652075] [2021-12-14 11:30:48,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-14 11:30:48,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 11:30:48,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 11:30:48,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 11:30:48,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-12-14 11:30:48,606 INFO L87 Difference]: Start difference. First operand 155 states and 173 transitions. Second operand has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:48,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 11:30:48,821 INFO L93 Difference]: Finished difference Result 165 states and 182 transitions. [2021-12-14 11:30:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-14 11:30:48,822 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 77 [2021-12-14 11:30:48,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 11:30:48,822 INFO L225 Difference]: With dead ends: 165 [2021-12-14 11:30:48,823 INFO L226 Difference]: Without dead ends: 99 [2021-12-14 11:30:48,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=355, Unknown=0, NotChecked=0, Total=506 [2021-12-14 11:30:48,823 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 45 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 11:30:48,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 217 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 11:30:48,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-12-14 11:30:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2021-12-14 11:30:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 83 states have (on average 1.1325301204819278) internal successors, (94), 83 states have internal predecessors, (94), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2021-12-14 11:30:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 106 transitions. [2021-12-14 11:30:48,834 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 106 transitions. Word has length 77 [2021-12-14 11:30:48,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 11:30:48,834 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 106 transitions. [2021-12-14 11:30:48,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 11:30:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 106 transitions. [2021-12-14 11:30:48,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-14 11:30:48,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 11:30:48,836 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 11:30:48,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-14 11:30:49,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-14 11:30:49,043 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 11:30:49,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 11:30:49,044 INFO L85 PathProgramCache]: Analyzing trace with hash 599706749, now seen corresponding path program 8 times [2021-12-14 11:30:49,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 11:30:49,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991100282] [2021-12-14 11:30:49,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 11:30:49,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 11:30:49,055 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 11:30:49,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [908763465] [2021-12-14 11:30:49,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 11:30:49,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 11:30:49,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 11:30:49,057 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 11:30:49,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-14 11:30:50,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 11:30:50,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 11:30:50,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 132 conjunts are in the unsatisfiable core [2021-12-14 11:30:50,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 11:30:50,099 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 [2021-12-14 11:30:50,103 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 [2021-12-14 11:30:50,109 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 [2021-12-14 11:30:50,191 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 79 treesize of output 72 [2021-12-14 11:30:50,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,199 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 11:30:50,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 97 [2021-12-14 11:30:50,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,214 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 36 treesize of output 7 [2021-12-14 11:30:50,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,243 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 36 treesize of output 7 [2021-12-14 11:30:50,331 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 93 treesize of output 84 [2021-12-14 11:30:50,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,350 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 11:30:50,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 120 [2021-12-14 11:30:50,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 40 [2021-12-14 11:30:50,584 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 115 treesize of output 104 [2021-12-14 11:30:50,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 165 [2021-12-14 11:30:50,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,619 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 112 treesize of output 44 [2021-12-14 11:30:50,752 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 130 treesize of output 117 [2021-12-14 11:30:50,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 194 [2021-12-14 11:30:50,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 43 [2021-12-14 11:30:50,952 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 142 treesize of output 127 [2021-12-14 11:30:50,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:50,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 221 [2021-12-14 11:30:50,983 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-14 11:30:51,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 99 [2021-12-14 11:30:51,355 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 126 treesize of output 109 [2021-12-14 11:30:51,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 184 [2021-12-14 11:30:51,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 56 [2021-12-14 11:30:51,669 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 126 [2021-12-14 11:30:51,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 221 [2021-12-14 11:30:51,740 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-12-14 11:30:51,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:51,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 56 [2021-12-14 11:30:52,023 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 153 treesize of output 132 [2021-12-14 11:30:52,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 45 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 240 [2021-12-14 11:30:52,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:52,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 73 [2021-12-14 11:30:54,670 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 203 treesize of output 176 [2021-12-14 11:30:54,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:54,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,001 INFO L354 Elim1Store]: treesize reduction 671, result has 10.7 percent of original size [2021-12-14 11:30:55,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 16 case distinctions, treesize of input 175 treesize of output 275 [2021-12-14 11:30:55,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:55,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 86 [2021-12-14 11:30:58,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,512 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-14 11:30:58,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-14 11:30:58,546 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-14 11:30:58,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 141 treesize of output 50 [2021-12-14 11:30:58,671 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 11 proven. 222 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 11:30:58,671 INFO L328 TraceCheckSpWp]: Computing backward predicates...